25-06 short barrel specs

[khuber84]

I understand the concepts but don’t have the knowledge to know the actual numbers and measurements I would need for throating for the 134’s. Your opinion is the saami chamber is sufficient?

SAAMI, no.......technically the chamber has no freebore. It has a long 3 degree lead or throat. I'd have a reamer specd with 0.258-0.2585 freebore diameter, 1.5 degree lead. Keep the freebore length around 0.130-0.140 and you should be good.

 

[Keechi Kid]

SAAMI, no.......technically the chamber has no freebore. It has a long 3 degree lead or throat. I'd have a reamer specd with 0.258-0.2585 freebore diameter, 1.5 degree lead. Keep the freebore length around 0.130-0.140 and you should be good.

Ok. Thank you.

 

[PLhunter]

Not exactly what you have going on but in 2018 I put a 1:8 26 tube on one of my browning and had it throated for the 121 hammers at the time there weren’t a lot of options for the .257. Wishing so badly I got a 1:7 twist but Brux didn’t offer one.

Using imr 8133 I was getting 3250 out of those hammers. I hardly shoot that gun anymore though because the real world bc on those 121’s was abysmal. Terminal performance however was great. Just had to have very little wind to hit something.