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zeke · August 28, 2015, 06:12 AM

Usual cautions apply when getting loads off internet. Win Brass, Fed 210 primer, Lee size dies and hard LFC. From 20 in Marlin.

200 gn Sierra fn
40.0 grains 1680 for 2365 fps, vg accuracy
37.8 grains RL7 for 2170 fps, vg accuracy , compressed

220 gn Hdy
37.0 grains 1680 for 2200 fps, vg accuracy
35.5 grains RL7 for 2030 fps, vg accuracy

Win factory 200 grains got 2018 fps

255 gn Barnes original
30.0 grains 1680 for 1850 fps
32.0 grains RL7 for 1860 fps

Started with RCBS dies, but they sized the cases way too far. With a case s stout as the 375 win, excessive sizing and trimming is a pain.

August 28, 2015, 06:12 AM	#5
zeke Senior Member Join Date: November 17, 1999 Location: NW Wi Posts: 1,671	Usual cautions apply when getting loads off internet. Win Brass, Fed 210 primer, Lee size dies and hard LFC. From 20 in Marlin. 200 gn Sierra fn 40.0 grains 1680 for 2365 fps, vg accuracy 37.8 grains RL7 for 2170 fps, vg accuracy , compressed 220 gn Hdy 37.0 grains 1680 for 2200 fps, vg accuracy 35.5 grains RL7 for 2030 fps, vg accuracy Win factory 200 grains got 2018 fps 255 gn Barnes original 30.0 grains 1680 for 1850 fps 32.0 grains RL7 for 1860 fps Started with RCBS dies, but they sized the cases way too far. With a case s stout as the 375 win, excessive sizing and trimming is a pain. Last edited by zeke; August 28, 2015 at 02:12 PM.