Nitro

I have two leather bags with lead shot. Wished I had used them 20 years ago.

One bag weighs about 15 pounds and I sit it on a sand bag that is behind the butt of the gun. Actually, the lead sinks towards the bottom of the bag and thus the tickness of of bag between your shoulder and the butt is not that great. Once you are use to it you would use it for about anything.

I have a second bag that holds about 50 pounds of shot and is generally square in shape. When using this bad your arm pit more less goes over the bag. But so far I have hardly ever used as the 15 pound bag has done the job and I have used it on 460 with the Pendleton Dekicker (which is not much better than Magna Porting) and also 416 Wby with the brake removed.

On a bench I sit well back from the scope.

Probably an even better system is the one that John S on AR uses. He has a strap that goes around the butt and is attached to bags of lead shot on the bench.

I have never found accuracy to be lost as I have tested the bags with bench style guns in calibres like 300 Winchester.

Of course things would be different with a double rifle.

Mike