Introducing the Absolute Hammer

ButterBean

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My primary was a Competition Electronics DLX. It is going back for warranty service or replacement this afternoon. I’ll probable give it to one of my nephews to play with. My backup was an old Shooting Chrony F-1. It had been rode hard and put up wet. It’s on its 3rd screen thanks to my best buddy. Dang sabots.
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GLTaylor

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Hypothetically this is true but people seem to be getting good numbers with it for other bullets and I have 4 pounds to play with so I might as well confirm it for everyone.
Just remember the Absolutes are a radically different bullet design. WAY lower engraving and pressure. As Butterbean suggested earlier, go with powders for a significantly lighter bullet. JMO
 

NorCalRiceGuy

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Got it. What powder are you thinking the 6.5 AH needs in PRC? Isn’t 4831SC faster burning than RL26?
Something that doesn't fill the case as much because these are long for weight bullets that usually don't like compressed loads. Ball powders seem to fit the bill better than extruded powders, if that's any help.
 

ButterBean

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Something that doesn't fill the case as much because these are long for weight bullets that usually don't like compressed loads. Ball powders seem to fit the bill better than extruded powders, if that's any help.
I agree but you still want a 95% case fill, that's where it get's sticky, Lots of trial and error here, I have been doing the same thing with HH's with great results
 

vernw

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Did I miss Steve’s report on the 123AH testing in the 6.5CM? I’ve got 100 bullets, new Lapua, Starline SR, and once fired Hornady brass, and Stabil, 760, and H4350 powder, and CCI reg, mag, and BR, as well as Fed reg and mag match primers on hand. Have Forster bump die, Lee collet and FCD as well.

I’m a TX-based partially disabled one-eyed one-handed old phat phart former competitive shooter and long time reloader working part time kinda guy with limited avail range trips to 400yd range. Wanting to try these 123AH on IN white tails in early November. Two potential chassis rifles: stock Savage (not the Evolution or CRS) and a custom Criterion barreled target heavy barreled single shot action in a Cadex chassis to work with.

Desperately need some recommendations on where to start load work ups to try out. Use a Caldwell magnum tripod in a pop-up ground blind to hunt overlooking a cut bean field with up to 450-500yd max distances.

Any suggestions? Luckily the factory setup consistently pulls 0.5-.75 MOA groups with factory 143 ELD-X ammo in the factory rifle as a fallback.
 

CMP70306

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Just remember the Absolutes are a radically different bullet design. WAY lower engraving and pressure. As Butterbean suggested earlier, go with powders for a significantly lighter bullet. JMO
This is true, I already tried H4350, StaBall 6.5 and H4831SC and found StaBall to be the fastest so far by over 100 fps. Per my testing that would imply that StaBall is at the top of the burn rate bell curve, however per your testing Superformance and H4831 SC are right next to each other and you were 150 fps faster than my StaBall load and 300 fps faster than my max H4831SC load.

Since you were getting faster speeds with a slower powder I figured it may be worth running a quick ladder with Superformance and RL26 to confirm those results in my rifle.
 

Bigeclipse

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Anyone try the 123 6.5 in the PRC yet? I have some h4350 which might be fast enough burn for these. Looking for an initial charge to even start at. I dont mind experimenting to max pressure but need an idea of where to start. Thanks!
 

GLTaylor

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Anyone try the 123 6.5 in the PRC yet? I have some h4350 which might be fast enough burn for these. Looking for an initial charge to even start at. I dont mind experimenting to max pressure but need an idea of where to start. Thanks!
I tried R16 and N550 and both were too fast in the 6.5-06AI case (about same capacity as PRC). Superformance did well, but as noted its reputed to be temp sensitive. I may try something a tad slower? N 560 was too slow. Couldn't find pressure or velocity.
 

parshal

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Just did some pressure/velocity testing in the yard of the 123 AH. My current load is the 124 HH with 56.55 grains R23. It's on the ragged edge of pressure and probably too hot. I started with the hot HH load. There were zero signs of pressure at 60. I might be able to get another .5 grains but that'll be compressed. I'm .050" off the lands.

The only faster powders I have are Varget, H4350, H4831SC, MRP and R16 and I have no idea where to start with R16 or 4350.

6.5 SS
1:8
Fed 210
R23

56.55 - 3201
57 - 3240
57.5 - 3263
58 - 3278
58.5 - 3305
59 - 3355
59.5 - 3356
60 - 3370
 

Blacktail

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Just curious as I have both H1000 and 4831sc on hand. Was planning on h1000 for the saum and using h1000 for my 280ai with 160 or greater bullets the 143 HHs i was using 4831sc. Wonder if should look st 4831sc in the 6.5 saum vs h1000?
 

ButterBean

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Just did some pressure/velocity testing in the yard of the 123 AH. My current load is the 124 HH with 56.55 grains R23. It's on the ragged edge of pressure and probably too hot. I started with the hot HH load. There were zero signs of pressure at 60. I might be able to get another .5 grains but that'll be compressed. I'm .050" off the lands.

The only faster powders I have are Varget, H4350, H4831SC, MRP and R16 and I have no idea where to start with R16 or 4350.

6.5 SS
1:8
Fed 210
R23

56.55 - 3201
57 - 3240
57.5 - 3263
58 - 3278
58.5 - 3305
59 - 3355
59.5 - 3356
60 - 3370
I would Start with 52gr of RL16 and work up
 

ButterBean

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Just curious as I have both H1000 and 4831sc on hand. Was planning on h1000 for the saum and using h1000 for my 280ai with 160 or greater bullets the 143 HHs i was using 4831sc. Wonder if should look st 4831sc in the 6.5 saum vs h1000?
I'm betting those are both going to be to slow
 

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