Being down with the flu and weather being crumby, I was stuck building another fun rifle. It is a sleeper of sorts. A simple looking rem 700 short action, 24" fluted #4 contour barrel, oem camo rem adl stock, tuned up oem trigger and vortex bdc 4-16 scope. Totally boring and still needs cerakoted, but perfect for a test bed.
I wanted something that gave me creedmoor accuracy with a bit more speed. I decided to punch out a chamber with my proven 6.5 creedmoor reamer that could use virgin 260 rem brass. That gives me a 260, 30deg shoulder with a bit larger case diameter, thus more room for Powder. Think 260 terminator without the +p throat. I use my standard 6.5 cm dies and it leaves about .140" alone at the base.
I fireformed some crap 308win brass to fit to break in the barrel and try a pressure ladder. Here are the results with a 140bthp, 4831sc, f215 primers and old 308 brass.
I loaded up 50 new 260 cases with 43g 4831sc and 123 amax, 123 Lapua, 130 vld and 140 Hornady bthp to play with during fireforming. On the next nice day I'll get out and see how she shoots and post results.
I wanted something that gave me creedmoor accuracy with a bit more speed. I decided to punch out a chamber with my proven 6.5 creedmoor reamer that could use virgin 260 rem brass. That gives me a 260, 30deg shoulder with a bit larger case diameter, thus more room for Powder. Think 260 terminator without the +p throat. I use my standard 6.5 cm dies and it leaves about .140" alone at the base.
I fireformed some crap 308win brass to fit to break in the barrel and try a pressure ladder. Here are the results with a 140bthp, 4831sc, f215 primers and old 308 brass.
I loaded up 50 new 260 cases with 43g 4831sc and 123 amax, 123 Lapua, 130 vld and 140 Hornady bthp to play with during fireforming. On the next nice day I'll get out and see how she shoots and post results.