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.577-.450 Load for Old Military Rifles

Warning! Notes: primer: Federal 215 Large Rifle Magnum; brass: Rocky Mountain Cartridge Company; bullets cast in a custom Paul Jones mould; bullets poured of 1-20 (tin-lead) alloy and lubed with SPG; sizing diameter: .458 inch; chronograph notes are for five rounds and were taken with an Oehler Model 35P with start screen at approximately 6 feet; the .577-450 Martini-Henry Mark IV has a 33.5-inch barrel (Rifle Issue #235 - January/February, 2008)

Be Alert: Publisher cannot be responsible for errors in published load data.

Wt.	Bullet	Powder Manufacturer	Powder	Charge	Velocity (FPS)
495	roundnose	Swiss	1 1/2 Fg	Subscribe	1,358
Remarks: brutal recoil