crimp or not

10 February 2009, 06:02

woods

crimp or not

Boss Hoss

You obviously are a BR shooter. I would suggest that the original poster and most here are hunters and reload for hunting situations. When you reload for BR you certainly don't have to worry about

bullets being seated deeper in the mag from recoil from a heavy hunting load
cartridges being loaded into and out of a magazine several times from trips where they were not shot
bullets moving in the necks from compressed maximum hunting loads
seating bullets a long way from the lands due to mag length

Now I am not saying that I am not interested in BR techniques and certainly read every word and put it into my thought processes. But it was obvious to me that the reverse is not true with you as a BR shooter allowing for different approaches for hunting purposes as evidenced by your "you've got to be kidding" comment.

There are other shooting worlds other than BR.

____________________________________
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10 February 2009, 18:24

Boss Hoss

quote:
Originally posted by woods:
Boss Hoss

You obviously are a BR shooter. I would suggest that the original poster and most here are hunters and reload for hunting situations. When you reload for BR you certainly don't have to worry about

bullets being seated deeper in the mag from recoil from a heavy hunting load
cartridges being loaded into and out of a magazine several times from trips where they were not shot
bullets moving in the necks from compressed maximum hunting loads
seating bullets a long way from the lands due to mag length

Now I am not saying that I am not interested in BR techniques and certainly read every word and put it into my thought processes. But it was obvious to me that the reverse is not true with you as a BR shooter allowing for different approaches for hunting purposes as evidenced by your "you've got to be kidding" comment.

There are other shooting worlds other than BR.

If you read Carefully you will note I LOAD for both this way Sporter and BR. Never had a bullet MOVE in the case Ever from recoil and shoot as a rule higher recoiling rifles than most (338 Lapua Imp etc).

Compressed loads esp using a stick type powder is not good for accuracy but most people are not aware of that or the reason why for that matter.

Your next point please?

10 February 2009, 21:16

303Guy

Thanks Boss Hoss. Much appreciated.

quote:
Compressed loads esp using a stick type powder is not good for accuracy

I can only guess as to why - inhibiting the primer flash, crushing the granules and even blocking the flash hole with a granule or two which might effect ignition consistancy. Would you mind explaining the real reason? Any idea why Lil'Gun might be more accurate with compression? (22 Hornet - long neck, shoulderless, tapered case, powder compressed most of the neck length. Compression seems to reduce pressure).

10 February 2009, 21:58

C.C.

I have very lightly crimped some rifle loads with my Lee Collet Crimp die, and it seems like maybe there is a slight increase in accuracy.

Now that I have accurate loads developed, I will experiment with various amounts of crimp.

I also had the Factory Crimp die for my revolver, and didn't really like it. I think that for handgun cartridges, all that needs to be done can be done with a quality set of dies.

11 February 2009, 20:53

Boss Hoss

quote:
Originally posted by 303Guy:
Thanks Boss Hoss. Much appreciated.
quote:
Compressed loads esp using a stick type powder is not good for accuracy
I can only guess as to why - inhibiting the primer flash, crushing the granules and even blocking the flash hole with a granule or two which might effect ignition consistancy. Would you mind explaining the real reason? Any idea why Lil'Gun might be more accurate with compression? (22 Hornet - long neck, shoulderless, tapered case, powder compressed most of the neck length. Compression seems to reduce pressure).

Compressed loads will break the kernels of powder and thereby causing a different burn rate of the powder---not good for generating a constant pressure which is the goal. Have borne this out with a chronograph.

12 February 2009, 02:03

Flippy

quote:
Originally posted by Boss Hoss:
Compressed loads will break the kernels of powder and thereby causing a different burn rate of the powder---not good for generating a constant pressure which is the goal. Have borne this out with a chronograph.

Makes sense to me. I never thought of that before.

Thanks.