P_ham does it again.

[BAKPAKR]

I’ve started with new Norma 270 necked down. Working through fire forming now (100 pcs)

What degree shoulder do you have?

 

[Wind Gypsy]

Hoping it’ll push 133’s well at 3k. Also plan to experiment with HDY 138gr a-tips with BC near 0.7

Yes, i'd think 133's would be 3100+ at top end loads?

 

[jeff_gibbons]

What degree shoulder do you have?

40

 

[jeff_gibbons]

Yes, i'd think 133's would be 3100+ at top end loads?

Oh please let that be so

Yes, i'd think 133's would be 3100+ at top end loads?

 

[Wind Gypsy]

Oh please let that be so

Just guessin.. A couple 25" 6.5 SAUMs pushed berger 135s 3100+ without issue for me with h1000. A higher energy powder would have done more. I gotta think case capacity is somewhere between a 6.5 prc and SAUM case on an 06AI and bore diameter is only 0.007 off so I'd think you should be right there.

 

[nhenry]

Just guessin.. A couple 25" 6.5 SAUMs pushed berger 135s 3100+ without issue for me with h1000. A higher energy powder would have done more. I gotta think case capacity is somewhere between a 6.5 prc and SAUM case on an 06AI and bore diameter is only 0.007 off so I'd think you should be right there.

I’ve pushed the 133 berger to ~3050 fps in the regular 25-06 using Retumbo and RL 26 (1:7.5). I’d think 3150 or more is quite possible

 

[cahunter805]

Proof Sendero 7.5tw
MBM Baby Beast brake
AG Composites Alpine Hunter
Defiance Anti X
Triggertech Primary
Hawkins Oberndorf bottom metal
Leupold VX5HD 3-15x44
Titanium Cerakote for the barreled action and bottom metal
KG Gunkote Nano for the bolt

Bedded action, pillars are standard with AG.

I'm looking forward to seeing some load development out of this rifle, Jeff.

That’s a list of great parts put together by an awesome gunsmith! I’m sure it will keep shooting most everything in small groups.

 

[Robert N]

Proof Sendero 7.5tw
MBM Baby Beast brake
AG Composites Alpine Hunter
Defiance Anti X
Triggertech Primary
Hawkins Oberndorf bottom metal
Leupold VX5HD 3-15x44
Titanium Cerakote for the barreled action and bottom metal
KG Gunkote Nano for the bolt

Bedded action, pillars are standard with AG.

I'm looking forward to seeing some load development out of this rifle, Jeff.

What's the weight on that Rig?

 

[jeff_gibbons]

What's the weight on that Rig?

I’ll weigh tomorrow but believe around 8.9lb with scope

 

[jeff_gibbons]

I’ve pushed the 133 berger to ~3050 fps in the regular 25-06 using Retumbo and RL 26 (1:7.5). I’d think 3150 or more is quite possible

I have Retumbo and would love to see RL26 but it’s been unobtanium in my area last few years. Still forming cases but plan to start with 7828 then h1000.

 

[jeff_gibbons]

Just guessin.. A couple 25" 6.5 SAUMs pushed berger 135s 3100+ without issue for me with h1000. A higher energy powder would have done more. I gotta think case capacity is somewhere between a 6.5 prc and SAUM case on an 06AI and bore diameter is only 0.007 off so I'd think you should be right there.

I had the same thoughts when putting this rig together. Trying not to set expectations too high early considering broader bullet cross sections seem to push equivalent weight bullets faster. But, you raise a good point - .007 isn’t that much real estate..

 

[NVLongbow]

Paul Hampton is a great gunsmith!