a buddy asked me to put this on here to see if anybody had any thoughts
winchester model 70 action
krieger 1-8.5 twist chambered in 260
hs precision stock
all work performed by krieger
loading 42.5 gr. of H4350
against lands
it was shooting 5/8" groups with no signs of pressure. now the groups have opened up to 2.5" and the primers are being pierced. he is doing nothing different since he got it
winchester model 70 action
krieger 1-8.5 twist chambered in 260
hs precision stock
all work performed by krieger
loading 42.5 gr. of H4350
against lands
it was shooting 5/8" groups with no signs of pressure. now the groups have opened up to 2.5" and the primers are being pierced. he is doing nothing different since he got it