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Thread: Reloading 30 Cal carbine ??????

  1. #1
    Boolit Buddy
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    Reloading 30 Cal carbine ??????

    Reloading for my M1 carbine do I need to use a crimp die or a taper crimp die for this rifle. I crimp all my reloads for my semiautos. AR,AK M1,SKS. thank you.
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  2. #2
    Boolit Master 15meter's Avatar
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    Head spacing on the mouth of the case, I'd think taper is the correct answer.

    But I was the only boy with 3 sisters, what could I possibly know?

  3. #3
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    Taper crimp!
    Old enough to know better, young enough to do it anyway!

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    If you happen to have a Lee 120gr RNGC give that a try. Our carbines well shoot those.
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  5. #5
    Boolit Master
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    Never had a function problem with the old fashioned crimp. With straight and semi straight wall semi-auto cases it is important to have no significant flare at the case neck for consistent feeding.
    I never have had any problems with mine relative to primer ignition and using a crimp. A taper crimp would be better for cast bullets I think.

    One can see that this case has a slight amount of tapper from .356 to .336. for a pristine new factory shell.


  6. #6
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    Quote Originally Posted by 15meter View Post
    Head spacing on the mouth of the case, I'd think taper is the correct answer.
    Yes, this is correct. Also, trim length is critical so don't skip that step. The carbine does well with cast and my favorite boolits are the Lyman 311359 and the 311576, but the there are others (Lee) that work just fine too.
    Good loading.

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  7. #7
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    Larry Gibson's Avatar
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    A taper crimp is correct. You can back the FL die (w/o the deprime stem if it has one) and adjust to taper crimp. That works just fine.

    I've loaded thousands of cast bullets in the 30 Carine for use in M1 and M2 Carbines.

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    Larry Gibson

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  8. #8
    Boolit Master
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    I don't think I've ever seen nor even HEARD OF a roll-crimp die for .30 Carbine. It's been MY impression that all reloading dies for it were taper-crimp, only. I guess one can get most anything wanted on a custom basis.
    For in much wisdom is much grief: and he that increaseth knowledge increaseth sorrow. Ecclesiastes 1:18
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  9. #9
    Boolit Mold
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    Yes for a taper crimp

  10. #10
    Boolit Master


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    Quote Originally Posted by avogunner View Post
    Yes, this is correct. Also, trim length is critical so don't skip that step. The carbine does well with cast and my favorite boolits are the Lyman 311359 and the 311576, but the there are others (Lee) that work just fine too.
    Good loading.

    Click image for larger version. 

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    Definitely trim your brass and taper crimp!

  11. #11
    Boolit Master Rodfac's Avatar
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    Larry...how do those beautiful LSWC HP's function and what sort of accuracy are you getting? Sizing to 0.310" has worked in several '03 Springfields for me...is that good for M1 carbines as well?

    I've had a pair of carbines since the early 70's that have always been fed FMJ's...accuracy runs to ~3" or so a 100 yds. I've got Lyman's 311259gc as well as a cpl 0.314" .32 cal. molds but have always hesitated fearing lead infestation in and around my gas port/piston. What say you? Rod
    Rod

  12. #12
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    [B]Larry[/B]...how do those beautiful LSWC HP's function and what sort of accuracy are you getting? Sizing to 0.310" has worked in several '03 Springfields for me...is that good for M1 carbines as well?

    Last time I shot them a 15 round mag went into 2 1/4" at 100 yards from my shooter scoped M1 Carbine. I size them at .309 for the M1 carbines. Functioning is 100% but I've polished the feed ramps on my shooter. Before that one occasionally would hang up on the feed raamp. Never had the problem in any M1/M2 with the 311359 cast bullet.

    I've had a pair of carbines since the early 70's that have always been fed FMJ's...accuracy runs to ~3" or so a 100 yds. I've got Lyman's 311259gc as well as a cpl 0.314" .32 cal. molds but have always hesitated fearing lead infestation in and around my gas port/piston. What say you? Rod

    I shot thousands of 311359s through numerous M1/M2 carbines and had problems with only one. That was with an M2 Carbine that had a burr on the gas port which led to leading past it. As to build up of lead/fouling in the gas cylinder, it's never been a problem. Even with M2s fired full auto.
    Larry Gibson

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  13. #13
    Boolit Master Rodfac's Avatar
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    Larry, Many thanks for the response...I'll give it a try. BTW, using that 311359gc in my two Krags was a revelation. Sized 0.310", they didn't lead whatsoever, and accuracy with the issue sights (and my eyes) was superb. 2" or less at 50 yds, if I spent some time inspecting them. Annealing the GC's helped as well, reducing 50 yd groups by 1/2". Oddly enough, that same bullet didn't perk as well in my '03s, which really liked 311291gc at 0.310". All of the above were wheel weigh alloy with enough tin to help fill out and air cooled. Best regards, Rod and thanx again.
    Rod

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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