January 25, 2016, 12:32 PM | #1 |
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Reusing pulled FMJ
Greetings. I was over-crimping my 9mm rounds and had a number of unused cartridges. I pulled the bullets and unlike the currently correctly crimped rounds that I pulled while re-calibrating they almost have a cannular. Are these reusable or should I not take the risk?
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January 25, 2016, 12:41 PM | #2 |
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If your original powder charge is moderate and doesn't change, it's difficult for me to envision much hazard. On the other hand, since the projectiles aren't as uniform as they once were, you MAY experience "minute of washtub" accuracy, even at close-range.
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January 25, 2016, 01:12 PM | #3 |
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Can't think of any risk in reusing those bullets, what ever kind they are.
I once loaded 250 9s not to my liking. No way I was going to throw out that many bullets. They were for USPSA matches, so great accuracy wasn't a consideration. If there was any difference in the results from using new bullets, it wasn't readily apparent. Use them if you need.
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January 25, 2016, 02:49 PM | #4 |
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Just load 'em as if they're new. The bit of denting won't matter.
Taper crimp only enough that is required to hold the bullet in place.
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January 25, 2016, 02:59 PM | #5 |
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Didn't have a problem with pulled bullets
I accidentally loaded some Berry's 125 gr plated FP bullets over a new powder using "grams" as the unit measurement on my new digital scale rather than "grains". I thought the "g" stood for grains and didn't realize there was a "gn" unit measurement until after I loaded 100 rounds. Luckily, I discovered the overcharge before I shot any of the rounds. I pulled the bullets which were previously roll crimped with my RCBS seating / crimping die. They also had a very distinct ring which looked like a cannelure. I suspect the crimp went through the entire plating and was into the lead center. I reused these bullets and they were just as accurate as my new / unused Berry's bullets. Both were pretty accurate. I was as surprised as anyone, especially because I only recently started using plated bullets and didn't realize that I had far too much crimp on my cases.
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January 26, 2016, 01:20 PM | #6 |
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Prolly OK to re-load, but I think I'd measure them to insure no bulging took place with over crimping...
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January 26, 2016, 04:36 PM | #7 |
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wow, one GRAM=14.5 GRAINS. How did you get that much powder into the case? Compressed load?
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January 26, 2016, 04:48 PM | #8 |
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1 gram - 15.432 grains, not 14.5. Either way, BIG over-charge.
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January 26, 2016, 04:49 PM | #9 |
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It is actually 1gr.=15.4gn.
But did you have to blow up the story? |
January 26, 2016, 06:51 PM | #10 |
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I hate unclear abbreviations.
g = grams (back in pre-history, we used "gm" as being clearer. Few would confuse "gm" with grains, but the French are in control of the metric system it seems and they wanted "g") gr = grains (Personally, I think that gr is too easy to interpret at grams, so I use "gn" and think that is a lot clearer) See above post for abbreviation/designation confusion. 1 gram = 15.4323584... grains) Last edited by noylj; January 26, 2016 at 07:00 PM. |
January 26, 2016, 10:53 PM | #11 | |
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Quote:
The standard convention,quite obvious to anyone who owns an electronic scale is gn=grain and gr=gram. And because the comment was about measuring weights with such instrument and because there is such discrepancy in the units themselves it stands material and true. |
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