I have a Savage Model 12 F-class in 6BR. I'm getting cratered and sometimes pierced primers with what should be moderate loads. I've tried a few different powders and results are the same. No other signs of pressure, such as flattened primer or hard bolt lift. I'm getting low to upper 2800 fps (depending on which powder I use) with a 30" barrel and 105 gr Berger Hybrids when I start to see problems.
Example loads: 28.5 gr RL15, CCI 400 primer, .018 off lands 2820 fps
29.5 gr VVN-150, CCI 400 primer, .018 off lands, 2875 fps
Accuracy is good, but these loads are well below published max. I should be able to get 105s to 2900+ with a 30" barrel.
Anyone have any ideas what may be causing this?
Example loads: 28.5 gr RL15, CCI 400 primer, .018 off lands 2820 fps
29.5 gr VVN-150, CCI 400 primer, .018 off lands, 2875 fps
Accuracy is good, but these loads are well below published max. I should be able to get 105s to 2900+ with a 30" barrel.
Anyone have any ideas what may be causing this?
