Designing the 2-diameter paper patch bullet.

[Kurt]

I went to the BIG town Rockford ILL. and found a new measuring stick and when I came home I looked on the snow pile again and found more of Arnies bullets and three of mine. Mine did not fair as well as Arnie's. All of Arnies are perfect shot with both regular chambers from the Browning and my Shiloh .40-70.
Last spring I started to use some thinner paper the 55Y and 55W that I feel is to thin for a .004" deep grooved rifle. Two layers only add .003" to the bullet and I always felt that is not enough. Well today I see that my suspicions are close to being right.
The three on the right are my bullets cast 1/16 T/L. I wanted to use this standard alloy that is still malioblle filling the grooves when they start moving.
What I found with these three bullets is a major amount of gas cuts that burned through the patches. Three for three strikes out in my book using this thin paper. Maybe a softer alloy might be the answer but I can't test this till next winter.