Introducing the Absolute Hammer

JMW67

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Please provide load details, barrel, brass, twist, etc for all. Thanks!
I'm working on the load data spreadsheet to post.
6.5-280AI 26 inch benchmark 1 in 8 twist peterson 280 AI brass necked down and turned to .014 thickness once fired 62.2gr. RL-23, CCI mag primer, 123 AH, 5 shot chrono at 3537 with a 3.6 SD .325MOA at 150 yards 3.420 coal a .040 jump, .004 neck tension
 
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wwac2

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Dec 1, 2019
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Rl23 pressured out at 3400 for my saum. Gonna try some power pro 4000 today. I think I have more powder in my shop than the gunshops in my area combined.
Shep
You better be careful. That place sounds like it could go up like the shuttle. lol
 

MagMan

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Dec 20, 2002
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Started some testing but got rained out.

280 Ackley with 155 AH @ 3.43”, CCI 250, new Peterson brass and H100V. 8 twist Brux
54.5 - 2908 FPS
55 - 2939
55.5 - 2970
56 - 2987
56.5 - 3026
57 - 3053
57.5 - 3084
No pressure signs at all

300 RUM with 178 AH @ 3.67”, Fed 215, new ADG brass and RL 26. 10 twist Lilja
90 - 3241 FPS
90.5 - 3293
91 - 3336
91.5 - 3327
92 - 3363
92.5 - 3376
93 - 3406
No ejector marks although that 93 was a “clicker”

Going to run both a bit higher after the rain.
 

CMP70306

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Sep 12, 2011
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267
So did some testing with Superformance in the 6.5 PRC, went from 57.6gr up to 61.8g and velocity went from 3153 to 3420 with some light extractor marks and a heavier bolt lift. I'll be giving the 61.2 to 61.5 window a test as the velocity spread was only 3396 to 3402. The whole group was roughly 1.5 MOA but the first 4 were low while the remaining 11 went sub 3/4 MOA.

I also did more testing with StaBall 6.5, did the same load as last week but the groups opened to 1 MOA instead of sub 1/2 MOA. The weird thing is that the velocities seem to split between 3320 and 3360 with an odd 11 o'clock string even though they are all 59.3gr. I have the Lee FCD on order so I will have to try that and see if it helps tames the odd results I seem to be getting with StaBall.

Also I've been updating the document so if anybody else wants to add their load data please feel free.

 

JMW67

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Dec 6, 2012
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So did some testing with Superformance in the 6.5 PRC, went from 57.6gr up to 61.8g and velocity went from 3153 to 3420 with some light extractor marks and a heavier bolt lift. I'll be giving the 61.2 to 61.5 window a test as the velocity spread was only 3396 to 3402. The whole group was roughly 1.5 MOA but the first 4 were low while the remaining 11 went sub 3/4 MOA.

I also did more testing with StaBall 6.5, did the same load as last week but the groups opened to 1 MOA instead of sub 1/2 MOA. The weird thing is that the velocities seem to split between 3320 and 3360 with an odd 11 o'clock string even though they are all 59.3gr. I have the Lee FCD on order so I will have to try that and see if it helps tames the odd results I seem to be getting with StaBall.

Also I've been updating the document so if anybody else wants to add their load data please feel free.

I have noticed with staball 6.5 when you get to upper end loads it will get real jumpy with velocity
 

CMP70306

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Sep 12, 2011
Messages
267
I have noticed with staball 6.5 when you get to upper end loads it will get real jumpy with velocity
Yeah I think I'm going to back down a bit to try a lower node and see how that goes and use Superformance for the faster node. I also have the 109gr AH coming this week so I'll give StaBall a shot with those.
 

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