Ultramag45
Well-Known Member
Hey guys, Been having a heck of a time getting the 300 bergers to shoot out of my Defensive Edge 338 RUM... It will shoot 300 Smks and 300 Accubonds behind 88 to 89 grs of H1000 all in a bughole..seated at 3.775OAL as where Shawn seated the test loads...I have played with these bergers up and down in .2 increments and seating depths...I start with mag length which is 3.80.. Dont want to single shot them.....changed to retumbo and have done the same...cant get under an inch...changed primers from CCI250s to Fed 215 still nothing good....Any suggestions....thanks gun)