crittergitter
Well-Known Member
Working up a load for a 34" bbl 338/ 300 RUM with 300 grain SMK's. I am at 88 grains of Retumbo and .19 moa groups...about 2700 fps. I don't know how far I can go with Retumbo without dangerous pressures. Any suggestions?
What can I expect from US869?
Any other load suggestions?
What can I expect from US869?
Any other load suggestions?