Gamo Swarm Magnum 10x Gen3i Chronograph Test 

I'm still learning the hold on this one. The other day I was printing 1/2" at 25 yards with the JSB 18.13gr. Yesterday when I shot this vid, I did some shooting also, and my groups were opened up to about 2" with the same pellet. It was windy, but not THAT windy. So I will work on that a bit. When I share a shooting vid I want to show the gun's ability, not MY inability.....grin

Yeah, the manufacturers like to fluff up the numbers. Thanks for watching!

Thanks!😀

Glad you enjoyed the vid, thanks for watching and taking the time to share your comments!

Glad to 'help'....grin.

Glad you enjoyed the vids, thanks for watching! I have a few different pellets from H&N and JSB sampler packs. I'll have to do a big velocity/accuracy test one of these days.

@Shane Pitzer yeah that be awesome man

Glad you enjoyed it, thanks for watching!

I have 1820m above sea level and I have 860 fps approx, is this normal?

@@yaravimegpoid I think it is normal, you are at pretty high elevation. Thanks for watching!

I'll get some shooting results up in the near future. Today I put 100 or so pellets through it, trying different holds to see what lets it shoot well. I think I have it figured out. Got a nice sub-1/2" 5-shot group at 27 yards after working with it for a while.

We should start seeing some starlings around here soon, this should crush them.

@@shanepitzer4126 that is very respectable 👍🏼

@@shanepitzer4126 for sure.

I'm definitely going to do some comparison videos. Thanks for watching and sharing your comment!

That seems like great performance. So far mine hasn't broken the included scope, or a Hawke I had on it for a short time. I'm sure it is only a matter of time though. I had an RWS 3500 that trashed two scopes in under 50 shots each. Broken reticles in both cases. Thanks for watching and sharing a comment!

17 or 22?

@@rogergoodwin5533 That's with .22 pellets.

Yeah they are pretty nice. I'm liking the looks of the new "Pro" model stock. I don't really want to buy another Gamo Magnum, but if they would just offer the stock, I'd buy one.

I have owned so many air rifles, and I actually sold off my TX200 and kept my FX Crown and this Gamo Magnum, Gamo Swarm, and Gamo Varmit. I just like their weight and they shoot great for me. I personally like the thumbhole stock the best but its all preference. @@shanepitzer4126

I cleaned mine first also. I too had to take the suppressor apart to do it. It was pretty simple though, just pushed out those two roll pins, then the top cap and baffles came right off. Thanks for watching!

@@shanepitzer4126 you said in the video about 4000 feet above see level is 80% of air density at sea level, how much velocity you think you lost for being at 4000’ ? Just curious because I’m at 5000 feet and I never been able to shoot cross man 14.3 gr faster than 835 fps , and 9.8 gr gamo pellets fastest I ever done was 1205 not 1300 with gamo magnum gen3i , do you think the elevation is the reason for less velocity or the gun it self , thank you

@@bobybaba5267 I think it's definitely the elevation, not the gun. Thinner air in the compression chamber just isn't going to give as much 'boost' as thicker air. I'm getting about 850 fps with the Crosman 14.3gr, so your velocity of 835 at 5000 ft doesn't surprise me. I think I'm losing 50-75 fps depending on pellet weight, as compared to down near sea-level. You're likely losing 75-100 fps. Shane

@@shanepitzer4126 thank you 🙏

Thanks for watching, glad you enjoyed the vid! It's a nice air rifle, Semper Fi!

Thanks for watching, glad you enjoyed the video!

Yeah they are a lot of fun. More fun than I had imagined. I got my first air gun a couple years ago, bought/sold a few, there are four in the inventory now.

Yeah, I just take it with a grain of salt. The number might be true, or close, at sea level, with the lightest alloy pellets. The reason I'm not really bothered about it is because pellets do their best accuracy at subsonic velocity anyways.

@@shanepitzer4126 I also take it with a grain of salt. Nonetheless, it doesn't make any sense to advertise numbers like that. I'd much rather see the average numbers advertised, or at maybe numbers for lightest pellet, average, and heavy pellets.

@@XXNerdzillaXX That would be more useful information.

Totally agree. These are impressive air rifles for sure but the manufacturers claims are wildly inaccurate. They should do what Porsche do, slightly understate the performance specs and give the customer a nice surprise. Under promise & over deliver.

They probably did get the advertised velocity, but under ideal laboratory conditions. Perfect pellet, perfect temperature, perfect humidity factor, perfect air density. One can get higher velocities by Dieseling. Dieseling is where you put a drop of gun oil on a pellet before firing it. The sudden compression of the air produces enough heat to ignite the oil. The burning of the oil produces extra pressure, thus extra velocity. The oil probably also acts as a seal to retain more pressure. I've done this even with a bb fired from a 177 caliber pellet/bb gun. It worked. Keep in mind though, pellet guns were not designed for the extra pressure Dieseling produces. So be careful!

I looked at the Hunter Extreme too, before buying my Swarm. The Hunter Extreme looks really nice with the sights, wood stock, and all. I'm sure it will be a fantastic break-barrel.

Benjamin, I'm sorry I have no experience with the slugs. Thanks for watching!

I don't think you are wrong. But I'm at 4000 feet elevation. The air is a bit thinner here than lower elevations. I'm sure Gamo recorded their performance in atmosphere closer to sea level where the air is more dense. I've noticed that I lose 60 or so FPS compared to others using same gun/pellet at low elevation.

That could be true. I believe it must have something to do with bore seal, and the lead hardness. Thanks for watching!

Good deal!!

Thinner air doesn't compress and build as much pressure. Here at 4000 ft, I seem to be losing 50-75 fps compared to low elevation, per some reviews I've seen. Thanks for watching!

@@shanepitzer4126 Good to know. Thanks.

@@johnnybbgunner2136 It wouldn't be an issue with PCP or CO2 guns. But with the break-barrel the air in the compression chamber just isn't as dense at altitude. I suppose with a multi-pumper one could add a pump or two at higher elevation, as needed to compensate for the thinner air.

@@shanepitzer4126 That was going to be my next question on PCP or CO2 guns. The only xtra pumps would definitely work.

Thanks for watching and subscribing, glad you enjoyed the vid!

Yeah it does take the edge off the noise for sure.

Oh man, that's hard to say. I really like both of them.

I believe it's a good idea. I swabbed the bore on this one, and it was fairly grimy inside. About three patches got it clean enough. A lot of black fouling from the machining lube, and maybe some preservative they put in the bore. Thanks for watching!

Advertised velocity will be the lightest alloy pellet, near sea level, hot day, shooting downhill (grin). They say it's best to have a muzzle velocity below supersonic anyway, because the transition to subsonic velocity can mess with accuracy. I've heard a lot of air gunners with more knowledge than me suggest that around 890 fps is a great place to be. Thanks for watching!

Well, I have to eat my words there. When My Hatsan 125 Sniper QE was new, it was probably registering higher velocities due to new dieseling. A couple days ago I did a side-by-side chrono test with the Hatsan 125 and Gamo Mgnum. Some results (elevation 4000ft): Crosman 14.3gr - Hatsan 910fps, Gamo 850 fps JSB 18.13 - Hatsan 805fps, Gamo 775fps.

Nice 👍 TY

I'm from India ,can u tell me what is the size of transfer port of ur.22 gamo Magnum

@@PankajGupta-cc5rr I measured it with calipers. It is right at .180 inches in diameter.

@@PankajGupta-cc5rr Thanks for watching!

I'm sure that is part of the equation. Thanks for watching!

I've not had a Gen2, so I couldn't really say from experience. I believe it's the same powerplant, dropped the open sights, and some tweaking to the magazine feed system. Thanks for watching!

@@shanepitzer4126 thanks for responding

Nice! I hope you enjoy yours as much as I am enjoying mine. Thanks for watching!

Probably about right at lower elevation. Maybe 1000-1100 here at 4000 ft? I haven't tried the RWS Hobby, but I should probably give it a whirl one of these days. Thanks for watching!

Those were ricocheting off the ground. I heard them too.

Yes they do. That is probably doable at sea level, with the lightest alloy pellets. I'm at 4000ft, shooting mostly 14.3gr and 18.13gr, so I'm in the 750-900 fps range depending on the pellet.

I have never tried any of the PBA or alloy pellets. Internet lore says they are not very accurate having to pass through the transonic velocity range. Thanks for watching!

Yes. The speed of sound is around 1080 fps. None of these pellets were anywhere near that velocity.

@shanepitzer4126 The gamo site says they can do 1300. I want something subsonic for sure

@@user-bl3si3kq6x 1300 might happen with alloy pellets, at sea-level, on a hot day. With the lead 22 cal pellets, in the 14+ grain weight, it's subsonic.

That might be possible with the lightest alloy pellet, near sea-level. Surely not happening with a 14-18gr pellet at 4000 ft elevation.

@@shanepitzer4126 I'm at a mile above Sea Level...

@@Joe_Goofball Yeah, that elevation 's not going to help in reaching those advertised velocities....

It seems the airgun industry likes to fluff up the numbers. Also I'm at 4000 ft, so that robs 50-60 fps.

I didn't go into the test with any expectations. I know from experience that thinner air at elevation always robs power from a break-barrel. There's no way around it. It is what it is. Thanks for watching and sharing a comment.

Great observation, thanks for sharing!

That might be the lightest alloy pellet, at sea level, on a hot day.....grin

@@shanepitzer4126 bogus advertisement in my opinion, nobody wants a gun saying 1300fps from a brand that doesn’t even sell pellets availably that can shoot that speed let alone anywhere close. I was shooting 25 grain jsb hollow points out of my .22 magnum gen3 do you think that’s enough to kill a raccoon or should I use smaller pellets for more penetration

@@loudamato9480 I've never tried 25grain. Maybe test it on a board or something for penetration. I would imagine it will work, but always a good idea to test penetration on a few random things.

That's good to know, thanks!

Thanks for the heads up!

Glad you enjoyed the video, thanks for watching!