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Thread: Bullet jam

  1. #1
    Boolit Master

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    Bullet jam

    Maybe this isn't right place to post, correct me if I'm wrong.. But watch this amazing video concerning seating depth, distance from lands and moa results. Seems .007 from lands was much more accurate.

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  2. #2
    Boolit Master
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    Thanks for sharing the video!
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  3. #3
    Boolit Master

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    No Problem. This is yet just another pertinent "variable" in the quest for sweet accuracy.
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    Pain, is just weakness leaving the body...
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  4. #4
    Boolit Buddy
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    This is a great video because I was just wondering about COL and how it affects accuracy. Probably more important in rifles but I would imagine it would affect handguns as well. As a matter of fact I have some more 9mm load development to do and COL is one variable I need to play with.

  5. #5
    Boolit Master

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    Not new to reloading so to speak but as far as COL is concerned and how close we can get a projectile to the lands....what's the best way to calculate? Interested in hearing some different ideas. I know this is different from gun to gun but for instance in a Savage Axis 308 or a Winchester M70 (Mine is actually a Ted Williams -pre-64 I think).
    The unexamined life is not worth living----Socrates
    Pain, is just weakness leaving the body...
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  6. #6
    Boolit Grand Master

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    Quote Originally Posted by marek313 View Post
    This is a great video because I was just wondering about COL and how it affects accuracy. Probably more important in rifles but I would imagine it would affect handguns as well. As a matter of fact I have some more 9mm load development to do and COL is one variable I need to play with.
    The smaller the case - 9mm, 380, etc the more drastic the effect of changing COL on pressure. Be careful shortening the COL, you are reducing internal powder space.
    Wayne the Shrink

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  7. #7
    Boolit Master


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    I think you would find that .007 was the best for this rifle. In my years of testing I have found that the "jam" varies from individual guns. The Hornady cartridge over-all length gauge is the tool to measure the proper jam for your gun.

    Larry

  8. #8
    Boolit Master slide's Avatar
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    This is a little off topic but if I am not mistaken he is shooting powdercoated bullets.
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  9. #9
    Boolit Master slide's Avatar
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    My bad, magic markers!
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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