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Thread: 35-30/30 conversion for my Marlin 336C

  1. #1
    Boolit Bub
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    35-30/30 conversion for my Marlin 336C

    I'm moving forward on reboring my 30/30 to 35-30/30. Looking hard at the RCBS 82028 200gr FPGC to try in it when it's finished. (I'm also excited about losing the microgroove barreling, because mine just flat wouldn't shoot lead boolits.)

    Curious if anyone shoots this caliber and boolit. Also, would appreciate hearing on powders. Currently investigating H322 / H335 / Re-7 or Re-10.

  2. #2
    Boolit Master
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    Is J E S gonna rebore it for you? I'm seriously thinking about getting a Savage 99 rebored to .358 Win. by them.

  3. #3
    Boolit Bub
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    That's the plan.

  4. #4
    In Remembrance
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    Quote Originally Posted by wmitty View Post
    Is J E S gonna rebore it for you? I'm seriously thinking about getting a Savage 99 rebored to .358 Win. by them.
    I know one guy that had him do his M99 and he luvs it enough his browning went away.

  5. #5
    Boolit Bub
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    I'm also thinking about a Saeco 352 245 grain out of the 35/30-30.

    3-groove? What twist rate?

  6. #6
    Boolit Master Wayne S's Avatar
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    IHMSA # 566 "time sure flies when you're having FUN"

  7. #7
    Boolit Master
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    Quote Originally Posted by fremont View Post
    I'm also thinking about a Saeco 352 245 grain out of the 35/30-30.

    3-groove? What twist rate?
    14", 12" if you have thoughts to loading heavy jacketed bullets.
    I have danced with the Devil. She had excellent attorneys.

  8. #8
    Boolit Grand Master
    Mk42gunner's Avatar
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    I never had a .35x.30-30, but H335 has worked well in the .35 Remington, for me. I would think that any powder that is suitable for the .30-30 or .38-55 would work for this cartridge.

    I think a 14" twist will be more than sufficient, I believe Marlin uses a 16" twist on their .35 Remington's.

    Robert

  9. #9
    Boolit Grand Master Outpost75's Avatar
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    My. 35/.30-30 is a 16" twist and I have great results with a 260-grain LBT flatnosed bullet. 895" long from subsonic levels through full charge loads. RL7 is the powder of choice for full charge loads.

  10. #10
    Boolit Master Dan Cash's Avatar
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    If your gun would not shoot as a .30-30, assuming you had bullet fit and propellant under control, it likely won't shoot as a .35 either.
    I worked with a 30A last winter that would put two or three shots inside 2 inches then blow the rest of a five shot string into a modified choke pattern. Nothing worked. I stripped the fore end and mag tube and shot the gun. 5 shots into 1 1/4 at 100 yards.
    Upon examination, the magazine tube was binding the barrel just forward of the receiver. When that contact was relieved and the gun assembled, 5 shots inside 2 inches was routine.

  11. #11
    Boolit Master




    badgeredd's Avatar
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    I had Jesse re-bore and rifle my 30-30 to 35/30-30. When I asked him what he would suggest do twist, he replied 1:15. I haven't been disappointed in the least after going with his suggestion. The three groove rifling works very well wig cast. I've shot weights from 170 grains to 250 grains with no problems.

    Edd
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  12. #12
    Boolit Master
    Lefty SRH's Avatar
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    Where do you get dies for 35-30/30?
    "In GOD We Trust"

  13. #13
    Boolit Bub
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    I got my dies at CH4D. Had a set on the shelf. Think it was $80 or so.

    PS. Re-7 is giving me best results under a 200 RCBS LGC

  14. #14
    Boolit Grand Master Tatume's Avatar
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    The RCBS 35-200-FN mold works wondrously in my 358 Winchester. Bullets weigh 210 grains, are well formed, and shoot very accurately.

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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