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Quote: Sure. I have been using the same load for years: 47.5 gr AR2206H (=H4895) under the 250gr RNSP (Woodleigh, or the no-longer-available Hornady #3715) for 2210 fps in my rifle. The same load in my .375 JDJ gives about 50 fps higher velocity with the 250-grainers, but I have recently moved to AR2208 (=Varget) in that cartridge where 50gr AR2208 gives 2295 fps (and makes Group 1 Nitro for BGR competition). Reasonable to assume similar results for the MS 1910 since both my rifles (the Mannlicher Schoenauer and the modified Lee Enfield) should probably be considered ~46,000 psi actions. But start well below and work up carefully in your rifle, goes without sayin' ![]() EDIT Oops! That RNSN Woodleigh and the Hornady #3715 are 270-grainers, not 250gr. But it is 250-grainers I shoot in the poor-man's JDJ. No wonder the JDJ runs 50 fps higher! ![]() |