Does anyone use 6.5 staball in their 257 Roberts or 257 Ackley improved? I picked some up yesterday, a long with some Winchester large rifle magnum primers ( the only thing they had on the shelf). I'm pretty new to metallic loading, I've only loaded for my 44-40 colt, 50 or so bullets for a cousin's 32-20, and a box or so for a buddy's 30-40 krag Springfield.
The Ackley rig I have is built on a 1937 Winchester model 70 action with an Apex 1:12 twist barrel. Not an ideal twist rate but based on what I've seen on a ballistic calculator I can get away with the 80 grain Barnes, 100 grain speers and Nosler, I think 100 grain Hornady, and surprisingly enough the 117 grain flat nose interlock. The rifle will eventually be used by my kids ( 2 and 3 weeks old so they got a couple years) and my wife. I'll probably get to shoot it some myself.
The Ackley rig I have is built on a 1937 Winchester model 70 action with an Apex 1:12 twist barrel. Not an ideal twist rate but based on what I've seen on a ballistic calculator I can get away with the 80 grain Barnes, 100 grain speers and Nosler, I think 100 grain Hornady, and surprisingly enough the 117 grain flat nose interlock. The rifle will eventually be used by my kids ( 2 and 3 weeks old so they got a couple years) and my wife. I'll probably get to shoot it some myself.
