RE: Differences in commercial brass?
charlie brown
When swithcing to a different brass, don't assume that they will work at the same pressure levels as other brass for which you've worked up a load.
I just ran into this yesterday. I had worked up some 7mm08 loads for 140Grn Accubonds on top of 39Grn - 42.0Grns of Varget in.5Grn incrments with Remington Brass. The 40.0-42.0Grn loads shot extrememly well, 1/2"-3/4" 100 Yds Groups, in my MTN LSS and showed no pressure signs at all at
I bought some Norma brass and rather that do a full work up, I loaded some at 41.0, 41.5 and 42.0 grans. The 41.0 and 41.5 grn loads shot just fine, but the 42.0 grn loads showed definite pressure signs. Sticky bolt when ejecting and ejector marks on the bottom of the brass.
Lesson learned......don't take any short cuts!
firstshot
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