44-70-380 test

[Denali]

Mike,

What is the naked diameter of that round nose?
With that short curve of the round nose and long bearing surface I would pick a paper that will give you a of .436 or .435 even with your alloy your using instead of partially wrapping the bullet using the thicker paper. You dont need to have that bullet getting pushed out of shape into that thin gap.
I dont know what the distance you shot at those targets but they sure show promise.

Kurt

Kurt,

The naked diameter of the round nose is .425". I wrapped it normally with thick paper to get a diameter of about .436-.437". I wrapped up the base only 2/3 the way to the start of the ogive so less paper is in the bore section. It's a tight fit in the case with baco brass and full sized with a 43 Spanish die. 100 yards. My tapered Gibbs dropped at .4325 but I sized it to .429 and wrapped it with baco paper to get a good fit. Having done that I checked the same bullet unsized and over wrapped by 1/4" will fit snugly in fired baco brass with no resizing (something I'll have to try next time as they still drop in the chamber nicely). I really would like something that is a tight fit, maybe tapered, for hunting that does not require any resizing. At 380 grains, so little paper is ahead of the case that it chambers well even though it might be slightly over bore. I'll have to test repeated shots next time hoping the "overwrap" isn't detrimental. Or I just need a little thicker paper.

Dave,

No idea of the velocity.

Mike