FX Impact M3 Barrel change, 600 mm/700 mm - PLUS Accuracy test. What is the gain in velocity? 

Thanks Tom 🙂 One of my goals is to do that exactly - to answer the questions that I have been asking myself. And testing is not only a persuit of positive answers 🙂 I have a test commin up about weighing the slugs and the effect on the accuracy. Pretty excited about that one 😃

Well that is not entirely accurate since a much shorter barrel is impacted more with gun movement. But if you could fire without moving the gun at all (like in a vice, you are correct)

You are welcome 🙂 As for the chronograph on the tripod, it is a good solution, but in my experience it can be difficult for it to read some times, so I like the other possibility better. But if there is no place to mount it on a gun the tripod is an option 🙂 Best regards

You are welcome 🙂 Im glad that I could help. I hope that you will be happy with the Impact 😎

Thanks mate 🙂 I really believe that there is a possibility with the 700 mm 🙂

Thanks Felix 🤗

@@VikingAirgunner Peter, I got my tune; 1" groups today at 101 yards! I thought I was missing the target because they were so close :) Thanks again for blazing the trail with .177 slugs. Could not get chrony on it due to the bad light conditions :(

Hi Jan Thank you so much for taking the time to share your experiences 🙂 They all make perfectly good sense! I have had difficoulties getting my spread down and after installing the Sekhmet it was clear that the reg was the problem being around 15 seconds to fill completely. So for the last two months my rifle has been to service. It should be on the way back to me with a new reg and a new liner (dont know why with the liner🤔) Your advise with the higher reg makes sense. Gerhard recently said the same, but since he is using the original transfer port he has to go high. When I just recieved the gun the spread was almost non exciting, so I know that it is possible, so when I get it back I hope that it will behave again 😃 Thanks again for your input! Best regards Peter P 🙂

Yeah lets see where the length of the barrels ends 😃 Im really happy with the 700 mm. The 600 mm is on my Wildcat now 😃 I think that the increase would be bigger if the reg had been higher. When we tested the 500 vs the 600 in the Mk2 the gun was tuned for the 500. Here it was the other way around. But I still dont think that the gain would have been as significant. The sun and the good weather is still a couple of months away here. Kinda excited to see what higher temp will do for the accuracy 🤓 It usually helps - maybe I will be shooting hole in hole by June 😃😎😂 Best regards mate 😎

That is seriously good shooting mate 😎 Wish we didnt have the laws regarding caliber size in Denmark 😃

You are welcome my friend 🙂

Thanks Will 🙂 It is defenately possible - with my spread it should be possible for anyone to do 😀

Thank you Robert 🙂 I really appreciate it 🤗

Thank you Bruno 😀🤗

Thanks Andy 🙂 Have a nice weekend

Actually I think that he as one waiting for me all ready 😀 So just ask him - Im sure that he would make you one 🙂

Sharing my experience . I purchased a carbon sleeve in the US offered by FX . Instead of just sliding the sleeve in or gluing the sleeve in over the barrel I opted to put a thick silicone grease on the barrel and sleeve and slowly slide it into place . Later if you find it doesn’t help you you can easily remove it . My results have been mixed only because I shoot a lighter pellet and my speed didn’t contribute to much harmonics to begin with . You never know until you try it .

Hi Pat I never thought about indexing the liner. Thanks for sharing that idea mate 🙂 I want to get the tune as good as I can before using the barrel tuner. I have a cf barrel housing commin shortly, so there are still a few projects before, but it is comming 🙂 I think that there are many sweetspots at different velocities. Recently got a Wildcat and I had that shooting well at 760 fps and again at 850fps. I wish I was better at tuning, but it is a proces - so thanks again for your input 🤗🤗

I actually expected a greater difference in velocity between the two barrels since the diference between the 500 and the 600 mm was to big! Feeling very lucky to have a place like that to shoot 😎 Best regards Peter P

Anything that can make it more stiff and with less vibrations 🙂 Im a big fan of the barrel sleeves 🤗

Longer barrel benefits only when You can hold Your gun steady as hell. Longer barrel = more barrel dwell time. If You are only shooting from bench, longer barrel is good, but when shooting off the hand, then it is bad.

@@paavokaleva I agree. I could not imagine holding this gun off hand - or it would be kinda fun to do a video where I tried 😂

@@VikingAirgunner It would be nice entertainment to see accuracy at 50m shooting off hand. I bet You are familiar with AEAC Vlog YT channel and Airgun Exploration & Advancement Channel. Then You probably know that max fps doesn't mean max accuracy. That waste air behind projectile leaving muzzle.

@@paavokaleva And thats also why I say that Im not nesecarely interested in higher velocity - but more like the right velocity 🙂 I will go and check out the channels that you mention. Thanks for sharing mate 🤗

Thank you Neil 🙂

True! I dont know if you have seen my tuning video on my channel? In that video Im going into detail about the adjustment of the front valve 🙂 Thanks for your comment 🤗

Hi Steph It makes really good sense with the vertical shift ☝️ So far I have been focusing on the valve and I still believe that I can improve the tune by some fine adjusting. I have seen some changes in ES so not all done here. And with the ES being so much better in the 600 mm it could mean that I have turned the valve to far in for the 700 mm? 🤔 Valve closing to soon. I actually think that the M3 is capeable of doing an even better group - and thinking about my bench (a camping tsble) it would help to get a table that is rock solid 🤓

@@VikingAirgunner Yep, a sturdy table would be a good investment 😀 Build it yourself, you will exactly get the quality you want. I have started building mine to shoot at 50m in my backyard. Good luck with your tune. No doubt you'll figure out how to get your velocity spread fine.

Thank you my friend 🙂 Im kinda excited to see what a tighter spread will do to the accuracy 😀 At the moment I really cant imagine my self shooting a better group 😂

I follow your idea. My experience with longer barrels has given me much better accuracy 🙂 But at some point I will test out the 600 mm again, so lets see 🙂

@@VikingAirgunner I think for bench rest shooting 600/700mm provide better air efficiency but for woods walking, stalking a 500mm Wildcat or Impact really come into there own,from your testing your not loosing much velocity from 600mm compared to 700mm. Wonder what barrel lengths are preferred in bench rest competitions to someone who predominately hunts in woods, farms etc.

@@drekceldude walking in the woods the Wildcat is a clear winner - even if I have a 600 mm barrel on it. The Impact with the 700 mm is way too long and heavy! Im not 100% sure what barrels are most used in competition, but I am sure that the longer barrels are the most common - at least on the Impact. On the Crown with the way the barrel is attached the longer barrels might create too much vibration - but then again we have the barrel tuner 🤓

Thanks Jim 🙂

Since my spread is so bad I dont really recommend my settings, but I have the reg at 100, micro adjuster at 2,5 and valve at 3 🙂 I might turn up the reg to try for better spread 🙂

@@VikingAirgunner I have the wheel at 15, the micro is at 2.9 and the valve at 4. The fps spread is practically non-existent ; between 967-970. So it's super puzzling that the accuracy is pretty poor, being a 3cm spread at a only 30m ? I don't think I need to turn up the regulator, because 970 fps with 85 bar keeps the system unstressed. Not sure what to try next.........maybe wait for warmer weather :)

@@nonickname6154 There is a very positive effect with the warmer weather 🤗 If Im to compare the mk2 and the M3 I find the valve to be much more sensitive. Like an 8th of a turn really makes a big difference 😯

@@nonickname6154 If your groups are like that with that nearly perfect spread, I would say that you dont have the right velocity 🤔

Thats a good start buddy 😎

Thanks Will 🙂 20 m is a solid depth for spearfishing! I actually dont think that I ever went that deep with a speargun 🤔 I mainly did freediving and then just a bit of spearfishing. But some of the best experiences in the water was when just diving for fun and exploring. Eagle rays, mantas and deepsea baracudas... Memories buddy 🤗

@@VikingAirgunner yes good times 👍

I am not familar with that gun and I think you should make sure if a liner from FX will fit your gun. Liners shoot very different when you compare 177 to other calibers, so I cant really say anything about the 25 cal. since I only shoot 177.

@@VikingAirgunner Ok. Thanks for getting back to me. I study economics. The name of your RU-vid channel reminds me of a book that’s very interesting. It is called Viking Economics which basically explains why social democracy and democratic socialism completely out perform free market capitalism in every metric. The US is a result of them shifting more and more to free market capitalist system which has been a disaster for the US and much of the world socially and economically. If you can find it, it’s a good read.

Thanks Danny 🙂 The reg was at 100 bar 🙂 More about my settings in the discription of the video 🙂 New video about the 700 mm liner in the making 😉

Ok I’ll take a look thanks, videos very helpful for what I’m looking for, always explained on point 👍🏻

I havent been able to find just the liner, but both Krale and Huma-Air has the full barrel kit i both 600mm and 700mm🙂

@@VikingAirgunner thank you

Hi Chris Thanks for your advise 🤗 Maybe I should try that path. I tried it, but Im sure that I can be much more thorough. For now I have been focused on the valve wich has been positive, but I think that you are right. Thanks again mate 🤗

Good question. Its very much a matter of your ammo. A longer barrel will stabilize a heavier slug and to a certain extend it will make it more accurate at longer distances. If you are only shooting below 50 y pellets and a 500 mm liner will be just fine.

Thats a good point Tom! I really like the idea of turning down the reg to get more shots, but I might be too low at the moment...But with the quick adjustment system at 2,5 I dont think that it makes significently big vibrations. But maybe 10 bar more on the reg and a bit down on the hammer for me 😉 I doubt that your slugs would go very fast with 110 bar on the reg 😂 Have a great sunday 🙂

@@VikingAirgunner Of course, in .177 you don't need as much pressure because the weight of the ammunition is much lower. I forgot to say that with this method it gives a stronger but shorter air blast, so I need less air because with the strong air pressure I get the desired speed without residual air behind the slug. Good Sunday to you too.

I really hope so 😀

@@VikingAirgunner I am in the process of trying to figure out which .22 barrel liner kit in 700mm I should get. I am not shooting an FX but a Kral Jumbo that has been modified for 50fpe, I suspect with the new liner adapter with duel transfer ports I am going to gain energy due to the extra 100mm of barrel and the new duel ports, but don't know if I should go superior or superior super light. My Fpe is my limiting factor. Do you have any experience with the super light liner?

@@jimstewart5008 Im a big fan of the dual transfer port. It has given all my guns much better performance. But saddly I have no experience with the super light. I have only heard some folks mention it but that is about the extend of my knowlegde 😀

@@VikingAirgunner thanks again for taking the time to respond, I look forward to your next video, have a marvelous day!

Det kunne være hyggeligt, men skoven tilhører (desværre) ikke mig, så jeg kan ikke rigtigt tage andre med. Stefan er den eneste, der har fået lov til at joine mig. Jeg er dog på udkig efter et sted mere, hvor jeg håber at kunne have gæster med 🙂

@@VikingAirgunner ja det kunne det, der er ikke mange steder hvor man kan få lidt rækkevidde. Vil selv gerne skyde ud på 200m + og venter på at kunne opgradere til 800mm

Thats a very good question! And actually a question that I should have thought about before shooting. It goes like this - Any change done to a gun will contribute to a change in the "vibration image" of the gun. So things like a new barrel or adding carbon fiber to the barrel like sleeves or a barrel housing. Those are some of the big things that will cause the vibrations to change quite alot. Then there are smaller things like a new lighter or heavier scope. Change in the mounts are also a factor. Then there are the small things and not things that I have my focus at, but I heard that some olympic shooters do. How much you tighten the screws on that gun....Im not to comment further on that, but just to give a picture of how far you can take it. As for your question- Yes there is change in vibrations by attaching that chronograph on a pole like this. But by removing the chrono from the barrel where some attach is, there is a huge difference. And by using carbon fiber pole like mine it dampens the vibrations even better. Any gun has vibrations and the beauty of it is that we can tune our guns to be in harmony so the changes that we do are evened out Best regards Peter P

Thanks man 🙂 I might do that some time 🙂

Great that you ordered an M3 🙂 And good idea with the Huma dual hole transfer port! The power Kit should not nesecary. But a pin probe is best if you want to shoot slugs 🙂

Ohh and the carbon fiber barrel liner sleeve. Also a very good thing to install.

@@VikingAirgunner I will order. Thank for fast ansers.

@@hakonthauland3437 You are welcome 🙂

It is the FC-4 G2 I have a video about it 🙂

Hi Scott and welcome 🙂 You are completely right about the wait between shots. Its a good idea to wait for the plenum to fill. I did a video on Spread and Velocity. It gives some good info on the subject 🙂 I live in Denmark and we have no restrictions on airguns. We do need a hunting licence for anything bigger than 177, but I like this caliber 😃

Hi man I theory, yes. The vibrations in the CF is much less than in the standard alu. I have never done an actual test on the subject and I would imagine that such a test would not show much difference. But I believe that shooting lots of groups the avarage group size would decrease, so this is why I have done the change on my 600 mm. And the longer the barrel the greater the effect - so CF on the way for my 700 mm aswell 😀

Thank you so much 🙂 As for Stefan I will give him a heads up☝️ Im not into how the proces is around manufactoring, but I will have it on my M3 in a near future and I will be sure to evaluate it 🤗

@@TheVllade Thats a great idea 🤗

I have actually just been testing the 700 mm again today and hoping that I could make it perform, but saddly it was not the case 🙄 My advise is to save your money and if you want a barrel tensioner kit you can cut it down to fit your 600 mm liner 🤗 Havent done it yet but as soon as I find the tools to cut it down precisely, I will do it 🤓

@@VikingAirgunner I would imagine any shipyard could do it, they have tools to fine machine almost anything. If not then a tube/pipe cutter would be my bet. You know the types that swirl around the pipe when you cut it? But im gonna do your suggestion, i'm gonna order a tensioner kit and a carbon sleeve and stiffen up the 600mm instead.

@@trulsvian I think that you would be disappointed with the 700 mm. I have heard quite a few telling the same thing about it, so I guess that its not just me being bad at the tuning 😃 I cut it down today and pretty happy with the result 🤗

@@VikingAirgunner I wil follow your advice and keep the 600mm:)

Over the next months there will be lots of accuracy testing 🤗

For hunting the. 22 is best. More ft lbs. As for wich model is depends what kind of hunting. A M3 with a 800 mm barrel might be difficult to carry around, but for the long distances and from a fixed position it would be perfect. Small tight places or wandering in places with thick vegetation a Wildcat would be good. But my advise is to watch alot of videos and listen to the guys who does alot of hunting for their Experiences. Hope that you will find the best gun for your taste 🙂

@@VikingAirgunner hunting rabbit & same size of other.. thanks for reply

And I can truely confess that I didnt expect a result like that before starting shooting. But getting control over the spread will ensure the groups to be closer to this one every time.

@@VikingAirgunner yeah, the spread I am sure also can be tuned. But I did expect that you would gain quite a lot of FPS... I am not used to .177 tho, maybe it does not benefit from a longer barrel?

@@mikaelbackstrom The gain between the 500mm and the 600 mm was 46 fps, so I also expected more. Maybe if the reg was set a bit higher it would give a different result.

Hey Osvaldo Working on the valve is a very delicate area. I usually turn it 1/8 of a turn between each test to find the right spot. Wich length of barrel are u using and with kind? Slug liner or standard superior?

@@VikingAirgunner Hello, thank you very much for answering, it is difficult to find information here in Argentina, I use the 700 heavy liners!!! but I notice that with temperature changes everything also influences hahaha go through our channel if you don't mind and many for responding from now on you are invited to Argentina to hunt whenever you want greetings halcon airguns

@@osvaldogomez999 I just might take you up on that invitation some day - thank you mate 🙂 I wish that I could help you better, but I think that the cal 22 is much different from 177, so I better not expose myself as too clever 😃 But have you tried to turn up the velocity? Ted Biers last video he was shooting excellent groups at 1100 fps 😳 It might not be nessecary to go that high, but he was shooting 31.5 gr NSA cal 216.5. My own recent experience that I probably might cover in a video, is that I Went above 1000 fps in the 700 mm liner. I have had big issues with the spread in that liner, but going 1000+ it helped alot - and accuracy seem to be good. Only tested at 34 m so far, but it looks promising, so it might be the road forward for you aswell 🤔

@@VikingAirgunner well, thank you very much, I don't want to take up any more of your time, it's cal .25, ours, my partner. Use an fx maverick and I use an m3power block, maybe we want a perfection, which is impossible, hahaha, thank you very much, sorry for the inconvenience, and let's just wait when you want to come, thanks again halcon airguns

@@osvaldogomez999 Its a good setup. Always a good reason to look for better accuracy 😎 Take care mate 🙂

Congrats on the new gun mate 🤗 I was also surprised that it only comes with the pellet transfer port as standard, but luckily it is a quick change with the Huma. As for the hole - I asume that it is the diameter of the hole in the jam nut you are refering to? Mine is 6,35 mm.

@@VikingAirgunner thank you for the answer, yes it's the diameter of the lock nut and I don't understand what it's so big for .177

@@MrMartinzatko I actually never thought about it 🤔

@@VikingAirgunner interestingly, FX Maverick has a dual port automatically and no FX impact.

@@MrMartinzatko In 177?

There is no doubt that it has an effect when switching moderators. You should check out my video on spread and velocity in the longer barrels. This gives a good picture of the issue 🙂

Thanks for the comment on this rather old video - made me watch it again to remember making it. To answer your comment, you are SO right that something was off! I struggled more than you can ever imagine to control the spread on the 700 mm STX Superior liner. It seemed to work well with higher speeds, but since we know that higher doesnt have a good effect on accuracy, it was not the solution. Changing the liner into the heavy liner was☝️🤓 Check out my newer videos for more facts on this. Conclusion after having used the STX Superior liner was that it was able to shoot some decent groups - but felt more like luck than skill! So for anyone reading this: AVOID the 700 mm STX Superior liner in 177 and go for the Heavy liner! Problem solved 😎

Hi Frank I did a video on the 500 mm and the 600 mm. You can find some contact info in the discription of the video. He is not always replying, so have patience if you write him 🙂

sorry forgot to mention that wen the barrel kit arrived the steel part on the transfer port side was loose and i had to loktiite it

Im not really sure where you are going with this info? Could you specify a bit closer please? 🙂

​@@VikingAirgunner its either your first regulator went bad or the part that your dual transfer port screws on is loose as well. there is something wrong with your ES .also i emailed your friend about a carbon liner housing but no response

@@tromplee6107 That could make sense 🙂 Thanks for your suggestion 🙂

Thanks James 🙂

I will picking up the FX Impact 3 with .22 slug liner in the near future from my local Airgun retailer.

@@jamesbrownmiller808 You really have something to look forward to 🙂

@@VikingAirgunner for many years one would think a place like the Dallas and Fort Worth, Texas area should have several high end Airgun retailers ( we do have the Airforce airgun manufacturer in the area but they don’t have a retail store). In the past couple of weeks I did a google map search and behold, what did I find FT airguns literally the shop is in my backyard, to be exact 2.53 miles south of where I live ( right across the lake I live near) my wish has come true. Hopefully in the next year the owner will have has Airgun store and range built( this will be an Airgun only range)! Apparently the building plans have been approved with the city.

@@jamesbrownmiller808 That is fantstic!!! So he is also a FX dealer? I know that the bigger calipers are popular in the US. And I would probably be into to them aswell if I was living there. But the 22 seems like a perfect size. Ammo not too expensive, air consumption relatively low and enough knock down power for most hunting. I was just told yesterday that an old military 200 m shooting range like a mile away was approved for airgunning, so now I just hope to be able to go there soon 😎

Every barrel needs fine tuning, but the 700 mm liner has shown to be VERY difficult to get a decent spread from. And especially with the dual hole transfer port. Actually I changed back to the original transfer port on both barrels, but still the 700 mm is hard/impossible for me to tune. So now Im back to the 600 with a very low spread.

@@VikingAirgunner I wonder how the 800 mm will be? Alot of good reviews out about 20 fps more with the same settings.

@@robbypro3370 I dont think that it will only be available in the bigger calibers 🤔 But as long as the barrel can be controlled a longer barrel makes sense in my world 😎

Are u refering to the gun? All PCP´s will eventually have issues due to the o-rings. I had the MK1 and the MK2 and I never changed a single o-ring. On the M3 I had one leaking after just 5 days. Doesnt make it a bad gun though.

@@VikingAirgunner yes gun i mean what are the always issues with this mk3 impact?

@@gmtrumanandrade6145 Besides the o-ring at the back of the power plenum it was filling the plenum very slowly, so now it is sent back to FX for service.

@@VikingAirgunner how long have you had use the gun before this issues start to show up?

@@VikingAirgunner are they really worth the money?🤔

Its commin, its commin, I promise 😃 Actually I have a grand test of many different liners. STX, STX Superior and both 500 mm, 600 mm and 700 mm, but its gonna be another couple of months, so I hope that you will be patient my friend 🤗

Ok what are your results with both? 🙂

Yes but saddly with changing back to the 600 mm liner and the original transfer port 😢 Im explaining it in my next video wich should be online within the next week 🙂

@@VikingAirgunner had a same problem with my m3, you can pm and I can write what helped me (985fps/std 2.6,spread 13)

@@slintik what is your contact info?

My experience with high reg preasures is that it will result in bigger spread and less accuracy. It might be different in other calibers.

High reg and low hammer , helps the valve close fast I heard many times so this stops Any air distortion for the pellet when it leaves the barrel

@@ptescreen18 I am aquinted with the theory but my in my experience it does not give better accuracy - in fact the oposite. I always test theroies.

我还没有测试 600 毫米的精度，但我会在某个时候测试。 但是，我很确定 700 毫米是最好的。 无论是耗气量还是精度 谢谢收看 请 彼得·P

DAMN!!! I was hoping to be called one 😂 It is so satisfying to get those groups. What ammo are u using?

Hey and welcome aboard 😃 I only have the barrels that I use, but I am sure that you can find a barrel of your liking 🙂

Doing my best brother 😉 Thanks for watching 🤗