Jeffery BLE .450/.400 x 3-inch = 10 lbs even.

Wilkes-made Manton BLNE .470 = 11 lbs 1 oz

Greener BLNE .577 x 2 3/4 (on shotgun action) = 10 lbs 8 ozs

Scott-made Rodda SLNE .577/.500 N0.2 (cordite express) = 9lbs 10 ozs

Alex Henry ULH 20-bore/.577 Express = 11 lbs even

Tolley TLH .500/.450 x 3 1/2 Express = 9 lb 14 oz