I have been giving most of my attention to reloading for a few rifles. I'm working on 270 WSM, 7-08, and 300 WSM
. Yesterday, I have hit the jackpot with the 7-08 with 2 loads (140gr berger w/42g IMR 4064 and 140gr barnes TTSX with 48g superformance...both are cutting 1 hole at 100yrds.) The trouble I'm having is consistancy with both the WSM accuracy, but I want to first address another issue...
When I'm loading the 300 WSM with new brass, I am thorough in prepairing the brass (inspection, deburring, sizing, and so on). After I fire the new brass and go through the steps again, the brass is VERY tight to fit in the action ( a lot of force to lock the bolt). The groups are worse AFTER I reload the once fired brass, and the fit and groups are even worse on the third use.
I have noticed that the case length is a bit longer , but the neck length isn't the problem (I'm sure!) I know that the problem is the length of the shoulder. My question is, HOW CAN I FIX THIS??? Note, this is only occurring with the 300 WSM. The 270 WSM and the 7-08 are fine.
In addition, there is no problems with the bolt and case sticking on extraction, just some extra force when unlocking the bolt (like when the rounds are chambered). Finally, on the 3rd fired rounds/brass, there are pressure signs and I'm using a bit less powder.