Crimp Question

[Aldemar]

I've been using either plated or FMJ's on my revolver reloads using a taper crimp since there is no cannelure on the bullets.

I recently purchased some bullets which do have said cannelure. Would I be wise to purchase a roll crimp die or will the taper crimp die work sufficiently?

[bsumoba]

I only roll crimp my revolver stuff like my 38special and 357 mag that have a cannelure.

My 9mm stuff, i do use a taper crimp, but not a roll crimp. IMO, I think the taper crimp is fine on the cannelure bullets

[pdq_wizzard]

I've been using either plated or FMJ's on my revolver reloads using a taper crimp since there is no cannelure on the bullets.

I recently purchased some bullets which do have said cannelure. Would I be wise to purchase a roll crimp die or will the taper crimp die work sufficiently?

I would say if everything is working stay the course, if you see un-burnt powder try a roll crimp.

or if you are using them in a tube feed rifle you really want a roll crimp.

[Aldemar]

Haven't loaded any yet, hence the question. I don't have any issues with .38/357 or .44spl/mag using the taper crimp on plated/fmj's.

Guess I didn't ask the real question.....will the taper crimp die "roll" the crimp into the cannelure sufficiently or should I invest in the proper roll crimp die?

[pdq_wizzard]

I get a very nice crimp with my RCBS seating die

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[J-cat]

You can taper crimp into the cannelure. I actually prefer to apply a heavy taper crimp instead of a roll crimp because the roll crimp rears up the case mouth too much.

[bigedp51]

Over 75% of my crimps are taper crimp in my revolvers BUT with slower burning powders and hotter loads I will use a roll crimp





Below are two light practice loads for my model 29 .44 magnum with a five inch barrel. The powder is 100% burnt at 4.2 inches and 2.4 inches meaning you don't need a bone crushing crimp on fast to medium burning rate powders. If you would switch to 296 a very slow powder you need a good crimp and the powder would still not be 100% burnt in a 20 inch barrel. Meaning the type crimp and the degree of crimp depends a great deal on the burning rate of the powder.

[Spdjunkie]

Only wheel guns I load for are .38 Special
The load is a very light WC Target load using W231

- Plated DEWC w/ a Taper Crimp

[Germz]

The use of appropriate powder for the selected projectile can omit the necessity for crimping (to acheive proper pressure levels) as well.