6.5 creed and 156gr Bergers

[tdhanses]

Does anyone have a 7.5 twist 6.5 creedmoor barrel? What kind of affect will that have with the 156?

It wouldn’t hurt anything to have a faster twist, a 7.5 isn’t much faster then an 8 and an 8 stabilizes the 156’s just fine. I think you would see more benefit at lower elevation with a light load with a 7.5 vs 8.

 

[Mark at EXO]

Does anyone have a 7.5 twist 6.5 creedmoor barrel? What kind of affect will that have with the 156?

I am building a 20" 7.5 twist Creedmoor right now. I chose 7.5 partially to play with 156s and partially for Hammers. I'll try to report back when I have more data to share.

 

[wind gypsy]

Dan Bertocchini recently took 2nd place in the Hornady Precision Rifle Challenge event in WY (Utah?) with a creedmoor shooting 156s.

 

[woods89]

Shot 20 more of these at 41.3 of RL16 the other night. 10 with the magnetospeed and 10 without.

ES of the 10 with the chrono was 25. Group size was 1.59 for 10 with chrono attached and 1.29 for 10 without.

For my purposes I'm quite pleased. I'm not some uber sniper. I am completely out of case capacity so this is as high as I will go. I'd love to play with seating depth but am mag limited to 2.820.

If I can get an elk in front of it under 400 yds i will feel quite confident.

 

[woods89]

Bumping this thread. I got a chance to shoot a doe with one of these last fall and was very impressed. My rifle is at my gunsmith as we speak getting a Badger DBM installed which will give me about 70/1000ths more mag room. If only I wasn't down to 1/2# of RL 16........

 

[blacktail09]

I gave up, i shot over a hundred of them and tried everything and could not get better then 2 inch groups at 100. Switched to 147 and shot a 5 shot group in .3 of a inch. I really wanted them to work!

 

[woods89]

I gave up, i shot over a hundred of them and tried everything and could not get better then 2 inch groups at 100. Switched to 147 and shot a 5 shot group in .3 of a inch. I really wanted them to work!

That's too bad! My rifle likes them as well as anything I've tried.

 

[blacktail09]

That's too bad! My rifle likes them as well as anything I've tried.

Is yours a 1:8 twist creedmoor?

 

[woods89]

Is yours a 1:8 twist creedmoor?

Yes. I checked my dope last fall one day in a customers field and put 5 shots in 3'' prone off a backpack at 402 yds with them.

 

[MidGAHunter]

Gonna add a little to this thread. Local shop got some of these Berger 156 EOLs in and I've been wanting to try them in my 6.5 Creedmoor so 400 bullets somehow made their way home with me. Oops. Anywho, I loaded up 10 different charges (single round at each charge) for velocity testing. Set up and results below. I'm using H4350 and Berger recommended charge range was 36.5 to 40.3 grains with a 2.8 COAL. I ended up a little higher but also seated longer (still had to jump the bullet 0.12 for mag box/feeding). I let the barrel cool completely between shots.

Bergara HMR barreled action in Mesa Precision Arms Altitude stock, 24 inch barrel (1:8 twist).
Thunderbeast Ultra 7 suppressor
Once fired (from this rifle) Alpha Munitions brass
Federal 210M primers
Hodgdon H4350 powder
Labradar chronograph

1) 38.5: 2517 fps
2) 39.0: 2540 fps
3) 39.5: 2576 fps
4) 39.8: 2589 fps
5) 40.0: 2615 fps
6) 40.2: 2616 fps
7) 40.4: 2634 fps
8) 40.6: 2663 fps
9) 40.8: 2677 fps
10) 41.0: 2675 fps

I did not run in to any pressure signs. No sticky bolt lift and to my eyes primers all looked the same (also compared them to primers in 6x fired alpha brass that was loaded with 140 grain Eldm at 2715 fps and looked the same as those to me). So next steps...the sensible person in me says to pursue something around 40.1 grains. But part of me wants to see what the node around 41 grains has to offer...decisions, decisions.

 

[Miflatlander91]

Finally found some gonna load them up when they get here will post results have gunwerks brass and plenty of 4350 the the 140 elite hunters liked but I can’t find them currently. I do ha e a line in some reloaded 16 I’ll hopefully get my hands on to try them both out


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[Miflatlander91]

Played with the 156s tonight looks like I might be able to get them to feed of of the mag with a .09 jump hopefully I’ll find something they like there. I’ll still do the seating test and worst case come up with 2 loads one that feeds and one that doesn’t if I have 2


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[khuber84]

Rl26 is the ticket with these in any creed. I ran them in lapua up to 2816fps from a Tikka 24" until I saw bolt lift.. The Tikka has excessive freebore and I shot some pretty good groups at 90k off the lands going 2750fps.

 

[Miflatlander91]

That is impressive unfortunately I haven't been able to test any of mine yet hopefully work slows down in a week or 2 and I'll get some.range time in

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[BigRutt]

Anyone have any experience loading 147 eld's?? My 10th ed manual didn't have load data in it for the 147 but I just found one online. Says Max for H4350 is 40.3....which seems kind of light. Obviously going to work my way up to max. With 143eldx I was able to get up to 41.6gr h4350 and got a little bit of a sticky bolt backed off and my CTR liked 41.4gr really well.

6.5cm tikka ctr 20"
Lapua lrp brass
Fed 210m
H4350
147eldm

Any thoughts would be appreciated. Shooting suppressed and my gun seems to be about 50-60fps slower then what the factory hornady box says.

 

[Gnhunting]

We just ordered some of of this at shot.

 

[BoltActionBrotherhood]

I’m getting 2650 with the 147s out of my 16 inch barrel. Using Rl16

 

[BoltActionBrotherhood]

My 26 inch tube I’m getting 2830 with the 153s using rl16 and 2910 using rl26

 

[PowPowHawg]

Im getting 2635 out of my 22.5” 6.5 Creed with the 156 under 40.9 gn or H4350, federal 210M primer, V. Lapua brass, jumping .060 thou. .3-.4” groups with SD’s hovering around 5.5. Ran them up to just over 2700fps with some slight pressure but by far shot most accurate at where it is… Hope anything helps someone.

 

[docdoc]

Velocity requires pressure from a given case. When you are getting 6.5 PRC/6.5-06 velocity from a case with 10 grains water smaller capacity, you are probably over 70K psi. Tread carefully.