I fire-form my brass from military 308 brass, cheap brass and usually a little bit heavier. I use 49gr of Superformance powder and a #34 cci primer, 105 Berger vld hunting at 2.78 coal. This is max load so please start 10% lower. Tikka t3 action with a 1-8 twist 3 grove x-caliber 26“ barrel...