Effects of crimping

[Black Jaque Janaviac]

Has anyone done any work with crimping paper patched bullets?

I'm not using black powder loads so the smokeless powders can benefit from crimps.  So far I've learned that if the bullet has a crimp groove cast into it, you can roll-crimp over that groove and it won't cut the paper.  If, however you are not on the groove it will cut the paper.

What about taper crimps?  Any other tricks to get as a crimp as heavy as possible without cutting the patch?  How do you crimp a bullet that has no lube groove?

[wgr]

i think we are both after the same answer  im pp a 45/70  and i think a good taper crimp would be great for hunting  rounds  doesnt matter for target shooting  but then i have an 8mm that i want to pp for and it need some type of crimp  what is your opion  we should be able to find a taper crimp die somewere

[Stimey]

I am not sure of the auther but there is a book called 60 years of the 45/70, this is a very informative book and talks alot about crimping paper patched bullets.  If I can find a source for this book I will post it.

[Castaway]

Paul Matthews, and unless he he added another 20 year update, it's 40 years

[Stimey]

Thats right 40 years, I am thinking of the book 60 years of steamboating the missouri rivers, another great read.