John,
Thanks for the question. I like to talk about this rifle. It is a converted H&R , NEF 10 ga. shot gun with custom big bore barrels. 577NE and 50-110 Winchester with custom chamber, necked down to shoot the true .500 cal bullets as 500 S&W. A gunsmith did the barrel conversions and I did the stock work. The rattle-can paint job is my final "bubba" touch. It weighs 12 lbs. without the scope. It is safe to say that it is probably the cheapest 577NE that ever hunted Africa. ( chuckle.)
It is fine to shoot actually, with it's weight and straight stock, and it's very satisfying, the way it kills buffalo with the bullets I use. I have killed 7 cape buffalo with it, three with 700 gr cast bullets, all one shot kills at close range. With the 700 gr, 577NE Peregrine Bushmaster bullet and the 410gr CEB Raptors each buffalo was dead-right-there.
The CEB Raptor bullets defy conventional theory/concepts on terminal performance.