Originally Posted by
Steelhead
Those are some serious speeds!
Watch out with H100V, it can get squirrelly real fast but it's a good powder in 260/6.5CM.
I wouldn't sweat 2 thou neck length difference, 5 will make a difference though.
I never clean my 260 brass, wipe it off and brush necks, clean neck and shoulder with steel wool when grungy.
All I use is a lee collet, knock the shoulders back at approximately 6th loading with a Redding body die.
so easy to use and no lube needed with the collet die.
Size, prime & charge and seat bullet.
Tested Berger 140 hybrids today with H4350, got to 44 grains, could go higher for sure.
44 was looking REAL good and am looking forward to trying them out past 1000!
Will get speeds next time, I'm just happy they worked at AICS mag length.
Pretty big jump and the VLD's didn't like jump in my barrel.
Thinking hybrids for 1000+ and hornady 140bthp's for the rest.