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Tom Matiska · November 20, 2000, 06:17 PM

Re> 200gr speer jhp, 11.5gr w231, winchester large pistol primer....

FWIW

Winchester's own ball powder manual list the following maxes for 231: 11.2 gr 240 gr Hollow Soft Point; 11.0 gr for the 240gr Lead SWC; and 11.7gr for the 210gr Jacketed Hollow Point. All are listed as producing 38,000 C.U.P.

All of their published 44 Mag loads specify Magnum Primers.

The cautions not to use the load exactly as published (not reduce) and to use heavy crimp apply only to the 296 loads.

Their criteria for publishing loads is probably the most conservative you'll find. They test muzzle up, muzzle down, +140 F, -40 F, not to exceed 95% of SAAMI at 70 F, not to exceed 110% of SAAMI at elevated or supressed temps,....yada yada yada.... It is hard to get into trouble using their numbers.

I'd go with magnum primers and work up from 10% below their max.

November 20, 2000, 06:17 PM	#12
Tom Matiska Senior Member Join Date: April 12, 2000 Location: Wilkes-Barre, Pa Posts: 1,029	Re> 200gr speer jhp, 11.5gr w231, winchester large pistol primer.... FWIW Winchester's own ball powder manual list the following maxes for 231: 11.2 gr 240 gr Hollow Soft Point; 11.0 gr for the 240gr Lead SWC; and 11.7gr for the 210gr Jacketed Hollow Point. All are listed as producing 38,000 C.U.P. All of their published 44 Mag loads specify Magnum Primers. The cautions not to use the load exactly as published (not reduce) and to use heavy crimp apply only to the 296 loads. Their criteria for publishing loads is probably the most conservative you'll find. They test muzzle up, muzzle down, +140 F, -40 F, not to exceed 95% of SAAMI at 70 F, not to exceed 110% of SAAMI at elevated or supressed temps,....yada yada yada.... It is hard to get into trouble using their numbers. I'd go with magnum primers and work up from 10% below their max.