Sierra Match King 150 gr with Hodgdon Superformance in 6.5 Creedmoor 

I get great results with the 147 grain Hornady ELD Match and a max charge of Superformance powder in my rifle with a 1:8 twist barrel. No pressure signs at all.

I noped out on these when I saw the twist recommendation. I'm glad to see that you tried them and saved me some money! Looks like an awesome bullet that most people won't be able to shoot. That's ok, since those that have the twist to handle them will probably see some awesome performance. Sierra's awesome, but physics is physics. At least they seem to have given an honest twist recommendation on their package! On another topic...I'm wondering if you've been monitoring the throat erosion in your RPR? At 600 rounds I've seen like .024" of increase in max OAL for bullets with my TC Compass. I have no idea whether this is good or bad. Do you have any max OAL numbers from when your RPR was new, and have you kept track of your round count, and what is the current throat erosion you're seeing? Just curious. Great video, man! I'll try to send some more viewers your way since I probably won't be testing this bullet myself.

I'm just getting into reloading, but this will be the second projectile I try. I shoot the Hornady 147gr load 81505 out of the box right now in a Bartlein 1-7.75 to 1-7 gain twist barrel and they are incredibly accurate. I can't wait to see what I can achieve with handloads. After that I will try these Sierra 150 grainers.

It was worth a try. As a viewer, it was exciting to watch, too.

My begara is a 24inch 1-7.5 twist. As soon as my bench is set back up I plan on playing with thus bullet and seeing what kind of performance I can get out of it. I'll come back to post more once I've done some work with it.

Great, I just loaded 100 rounds of the stuff with H4350 powder. 40.3 gn. Unfortunately, I have another 100 on the way. I’m shooting with a Tikka T3x tac A1 chambered in 6.5 creedmoor that does have the 1.8 twist barrel. I loved how it shot the hornady 147 grain, with only 38 gn of H4350. That’s a very accurate round. I’ll just have to cross my fingers and hope for the best.

My 6.5 Creedmoor was formerly a Remington 700 chambered in .243 Win. It was a gift from grandfather in 1977. After the barrel was shot out, I had Bartlein true the action and rebarrel the gun with a 24" stainless, 5R, 1:8 twist barrel chambered in 6.5 CM. The folks at Bartlein talked me through the options. The 1:8 twist was best for me because I wanted to be able to use the gun with bullets ranging from the 95 grain varmint bullets for coyotes (at distances less than 250 yards) on up to the 143 grain ELD-X for larger game and long range target shooting. They told me if you go with a faster twist that over spins a bullet you will have more induced drift at long range and if the velocity is high enough you could even have your bullets come apart. If all I was going to shoot was coyotes, I could have optimized the gun for smaller bullets by going with the 1:9 twist. If I wanted to optimize the gun for the larger bullets, then 1:7.5 or faster would have been best. In any event, Bartlein was great in explaining the options and doing the gunsmithing. I now have two of their barrels and they're both great shooters. FYI

I was going to order those for my rifle I’m building, with a 1-7.5” twist. Even with the 1-7.5 I didn’t feel warm and fuzzy, so I settled for the 142gr

I am going to try them in a 6.5 PRC with a 1 in 8 twist. I am not going to use Superformance, I had no luck with Superformance in Creedmoor with 140 grain bullets.

Usually bc is done by manufacturers at 200 yards then midrange and then long so they are not lying like Hornady there bc is right on if you go to there website

Sierra 150 grain Match King HPBT worked well out of my 6.5-06, 26in 8 twist, Lilja Precision Rifle barrel. I would like to see a Creedmoor with a 7.5 (1-7") twist push that bullet with superb accuracy. Maybe one of ya will take on the task.

Good morning sir. Very interesting on your load out for the 6.5. Me been a 305 shooter. That a good test for it would be a heavy round. But like I've said before I hope to start reloading later this year. Thanks for sharing mate. An ya time. ATB

I can't believe you got 2800 fps with that combo. I'd have put money against it. Great videos man.

I have a Kreiger Barrel @27 inchers with a 1-8 twist for my 6.5x284 (M700 action) and it is a beast.....sub...sub MOA

I might have to try some of these in one of my 6.5 PRC. Should be able to 2950 fps.

1:7 twist is looking good

Great video, I have been wondering about the 150. The 147 and superformance combo work great in my set up.

Nice work, I’ve also thought about reviewing this bullet, but my current barrel is 1:8 like yours. This bullet specifically has made me consider ordering a 1:7 twist next time tho.

Mopar, the velocity will be slightly lower with 1-7.5. And the accuracy nodes are typically 2730 and 2820 respectively. The 147elDM is the maximum for 1-8 twist according to Litz's calculator on Bergers website.

Reports of these 150smk blowing up when being shot out of a 7.5 twist 6.5-284 at approx 2900 on accurate shooter forum be warned they may work at 6.5 creedmoor velocities though in 7.5 twist

Berger coming out new high bc bullets 6.5mm 156gr EOL | 30 cal 245gr EOL | 338 Cal 329gr EOL. Superformance bad reviews accuracy

I am tempted to grab it in the 260, but with the 147 results I am not sure the extra coin to acquire the 150s are currently worth it. Thank you for the video.

Thanks for this video. I was tempted to try this bullet out but I don't think it's gonna happen with my 1 and 8 twist.

To determine the proper rate of twist , to stabilize bullets....Bullet length, divided by, bullet dia. then 150 divided by answer. then answer times bullet diameter. will give the proper rate of twist needed to stabilize the bullets. 1.492/.264= 5.65151515, 150/5.65151515= 26.541555 X .264 bullet diameter = 7.00697052, OR a rate twist of 1 turn in 7" ... to get bullet RPMs 720 X mussel velocity FPS, then divide by the rate of twist will the produce the R.P.M.s of the bullet. the above figures are on the 150 grain Sierra MKBT for rate of twist. you will need a 1 in 7" twist for your Creedmoor. GOOD LUCK!

Liked the old name of your channel better!

When these arrive in Australia I just have to try them in my 6.5x47l 1:8 twist. Berger calculator tells me they will be stable with a SG of over 1.5 in my local conditions?? Anyone else here tried them in an 8 twist with results

What dies and seating stems did you use for these? I have the standard stem,140 grain and 147 green stems for my Hornady dies and neither of those contact very well.

Have you used the superformance in 223 development? And if so what’s your feedback? Thanks Bolt Action Reloading

Stumbled across your channel recently and subbed. I guess RU-vid knows what I like and what to suggest. LOL Interesting and nice to see you are not shy about trying things, e.g., these 150 gr SMK's in an 8 twist and especially the so called Scott Satterlee load development technique.I was intrigued, although a little skeptical, about the idea of being able to narrow down the best and most forgiving load for long range shooting in just 10 rounds when I first heard of this method last year. I, like you, immediately tried to "modify" and "improve" the 10 round method by doubling it to 20 rounds or more to increase my odds at success. I thought of 3 variations, the one you used in .1 grain increments being my second. My first was to just load and shoot 1 extra round at all the same prescribed .2 gr increments up the ladder thereby duplicating the test at the same time under the same conditions to compare the results of each set separately and collectively. This would be kind of a way to test the test. Also, knowing the ES for each step would be very helpful. My third idea was a hybrid that would shoot and look more like what most people are used to.

Great video man. I’m curious with my 26” barrel at 4400 feet elevation I could get it to work. Any idea what the elevation is where you’re at?

How many rounds were loaded at each charge weight?

Has anyone tried this bullet with Varget and 6.5...? I am searching for a work up 👆

I think these are more for custom barrels until more factory rifles are released with faster rates......maybe they will?

Ummmm... U fire off rounds and lower powder weight to check for signs of stress on the primer and brass.. Not sure I agree with starting with the high then going to low..

I shoot the 150 smk from my 6.5x47 with a 8 twist barrel and they shoot great.. but im also 4500 foot elevation.. so that helps

Been following you for awhile now. Great channel. I’m beginning to reload for the RPR 6.5 CM. I have 500 hornady once fired that I shot myself. I’m looking for a start powder and bullet combo to begin with. Any recommendations? I’ve been shooting 129gr white tail with decent results to 1100 yards. I want to stretch it out farther maybe out to a mile, so I want to reload accordingly for that. Thank you for your time.

If 1:8 wouldn't stabilise the 150gr in a 6.5 creedmoor would it stabilise in 6.5 PRC?

Did you ever runs groups on this powder with the 150 class bullets?

Is Reloader 16 + SMK HPBT a really good combo in the 6.5 CM?

Great videos.... twang n bang sounds just like you lol

This in a 6.5 sherman max...

So where's thereal world data

I have yet to get a velocity chart that is smooth. Makes no sense.

Like I said, I’m sure it’s a valid principle, just too old to change my ways, I guess. I’ve always been a load it, see what it will do and then make adjustments as needed. This is just too time consuming and wasteful of components to my way of working. Great if you want to experiment and theorize, but I’d rather load and go shoot. If it’s consistent and groups to 700 yards, I couldn’t care less where the nodes are or even if there are any nodes.

147's shoot AWESOME in my Savage 12 LRP / 1:8

I'm sure these OCW and 10 round experiments are valid, but I'll be damned if I can ever make it through an entire article or video on these tests. They always become sooooo boring. It seems you never see any actual 3-5 shot groups out to range. It's like they're a never ending test procedure with no end game or final solution. Someone PLEASE show me the test procedure, explain these 25 shot targets, tell which load is chosen and why and then show me some 3-5 shot targets at 100-750 yards.

Anyone tried this on 6.5 Grendel???

looks like they r easy to find now them and hornies oh and rdf's, rdf's r the worst bullet I ever shot, I give away 300 140 rdf's

Shoot berger, shoot better...

FIRST...!! Hahahaha