Just want to share some reloading data, if you have data you'd like to share, please post them below.
rifle: Tikka T3 270win, stainless steel
Hornady virgin brass headspace was 0.003'' longer than fire formed brass, thus resized to fit chamber. I tried Hornady brass that have longer headspace than the chamber, it feed and fire ok, no heavy bolt lift, or pressure sign.
Hornady virgin brass, CCI large rifle, H4831sc, bullet seat below the cantilever. Speed measured with magnetospeed sporter.
one interesting phenomenon: lowest powder charge's point of impact is at top right, as powder charge increase, the point of impact moves to bottom left.
based on the result, going to test 54.9, 55.9 and 57.6 grain for extreme spread, SD and accuracy this weekend
rifle: Tikka T3 270win, stainless steel
Hornady virgin brass headspace was 0.003'' longer than fire formed brass, thus resized to fit chamber. I tried Hornady brass that have longer headspace than the chamber, it feed and fire ok, no heavy bolt lift, or pressure sign.
Hornady virgin brass, CCI large rifle, H4831sc, bullet seat below the cantilever. Speed measured with magnetospeed sporter.
one interesting phenomenon: lowest powder charge's point of impact is at top right, as powder charge increase, the point of impact moves to bottom left.
based on the result, going to test 54.9, 55.9 and 57.6 grain for extreme spread, SD and accuracy this weekend
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