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Thread: How many times can I

  1. #1
    Boolit Mold
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    How many times can I

    Just wondering how many times I can reuse my 300 WM brass? I know it depends on how hot the loads are, but just kind looking for a general number.
    Last edited by Pighunter; 10-07-2019 at 02:54 PM. Reason: Spelling

  2. #2
    Boolit Master
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    I would venture to say anywhere from 4 to 10. Could be more if you anneal them every now and then. Also depends on how big the chamber neck is cut and how much you resize. And, yes, it can depend on the brass mfg.

  3. #3
    Boolit Buddy poppy42's Avatar
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    Are usually go with about eight times . Like you said depends on loads, quality of brass, caliber, etc. but the closest I use for a general rule of thumb is eight times.
    Long, Wide, Deep, and Without Hesitation!

  4. #4
    Boolit Master
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    some of mine split at 3-4, never annealed

  5. #5
    Boolit Master


    georgerkahn's Avatar
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    Pighunter -- There are myriads of variables, including even the manufacturer of your brass. I have included here a chart with some manufacturer's alloy -- numbers are in percentages -- for you to see this. Another variable is the chamber size of the firearm you are employing, not to take for granted its head-space. (As well as variables you aptly mentioned).
    Click image for larger version. 

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    Steel gets softer as it is worked -- e.g., bend a paper clip -- while just the opposite phenomena occurs with brass. Each and every time you work (e.g., fire) a round, the brass is expanded, then shrinks a tad as it cools. We then put it on the reloading press and exercise it more. For this reason, I'm a firm believer and do-er of annealing. For military loads in .30-'06, I anneal mine every third shooting, and generally retire the brass after its ninth. Before I began annealing, I'd get a modal four firings.
    Toooooo many variables to answer your question with much more than a "(slightly) educated guess". I hope this helps. I will add that, after you shoot some, I surely will enjoy your hopeful posting your actual experiences.
    BEST!
    geo

  6. #6
    Boolit Mold
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    Great information, Thank you all.

  7. #7
    Boolit Buddy
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    How completely you resize has another big effect. I size my cases minimally, meaning I can't close the bolt with my index finger, but my thumb closes it easily. In other words, size for the shoulder length, don't always size to the bottom of the resizing die. My cases usually fail due to cracked necks, not separation above the web.

  8. #8
    Boolit Buddy gnostic's Avatar
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    It's the primer pocket that goes first. When the primer seats easy, I toss them...

  9. #9
    Boolit Bub Slugster's Avatar
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    I reload bottlenecked rifle cases from 6 to 10 times. Straight wall cases...a lot. I'm still using the 200 PMC .44 magnum cases that I bought with my 1st Ruger Blackhawk in 1982. Lose a case to split neck once in a while, but still going strong. Anneal every 3 or 4 loadings and brass will last a lot longer. Size the cases to your rifle's chamber, don't just "cam over" on the press. I only partially re-size revolver cases, full resize pistol cases.
    NRA Life since about 1992

    My avatar is almost a dead ringer for my little buddy Chico. Six pounds of mean that thought he was a Pit Bull. Miss that little guy.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check