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Double Rifles, Single Shots & Combinations >> Double Rifles

DarylS
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Reged: 10/08/05
Posts: 27022
Loc: Beautiful British Columbia, Ca...

Re: Do you crimp your bullets in place?
23/09/11 12:27 AM

To get the powder to burn correctly in rounds like the .45/70 and .458 Win., 450 Watts, crimping is about necessary. Too - it prevents both length collapsing due to recoil hammering the rounds into a magazine, or lengthening due to the same forces. At times, 'jumping the crimp' also happens when crimps are not sufficiently heavy.

Lee Factory Crimp Dies help in this regard and allow heavier crimps than normal roll crimpers in seater dies.

In bottle necked rounds, I only crimp .218Bee and .22 Hornet - again, to get the powder I use to burn correctly.

The .356 Winchester M94 needed crimping to maintain ctg. length in the tubular magazine.

Normal hunting bottlenecked rounds in bolt actions do not need crimping in my opinion, nor have they ever needed it. Proper neck tension is more than sufficient to hold the bullets where they are. Roll crimping can actually soften/loosen the hold of the neck on the bullet.

--------------------
Daryl

"a gun without hammers is like a Spaniel without ears" King George V

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Subject	Posted by	Posted on
Do you crimp your bullets in place?	carpediem4570	22/09/11 03:40 AM
Re: Do you crimp your bullets in place?	FATBOY404	22/09/11 07:03 AM
Re: Do you crimp your bullets in place?	Ben	22/09/11 07:11 AM
Re: Do you crimp your bullets in place?	TilleyMan	22/09/11 07:40 AM
Re: Do you crimp your bullets in place?	ozhunter	22/09/11 05:12 PM
Re: Do you crimp your bullets in place?	DarylS	23/09/11 12:27 AM
Re: Do you crimp your bullets in place?	mickey	23/09/11 04:02 PM
Re: Do you crimp your bullets in place?	SAHUNT	23/09/11 05:21 PM
Re: Do you crimp your bullets in place?	9.3x57	24/09/11 01:02 AM
Re: Do you crimp your bullets in place?	gallatin	26/09/11 02:25 PM

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