I've used Peterson 6.5 PRC brass that I've got 4 firings on them so far and they've performed just fine. I've not used the 156 Bergers, but have fired Berger 153.5's with Retumbo. The 153.5's are very close to the same dimensions and I seat them with a COAL at 3.056 with 57.2 grs of Retumbo. 53.3 grs of H4831SC has also worked for me, though I've seated them to 3.102 COAL.Anyone using Peterson brass in 6.5 prc
Loading 156gr bergers in a LA Mag using a oal gauge I'm at 3.040" with 156 bergers.
Retumbo
H1000
H4831SC
Really leaning on Retumbo for a little more speed as I have a 26" barrel.
I used H1000 with good accuracy and velocity but the 156s got hard to find in 2019 and I switched to other bullets. The factory loaded berger run about 2860 in my rifle but accuracy is not up to my loads, about 3/4 moaAnyone using Peterson brass in 6.5 prc
Loading 156gr bergers in a LA Mag using a oal gauge I'm at 3.040" with 156 bergers.
Retumbo
H1000
H4831SC
Really leaning on Retumbo for a little more speed as I have a 26" barrel.