Anybody out thier shoot a 30-338 Win??

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by James Jones, Apr 8, 2006.

  1. James Jones

    James Jones Well-Known Member

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    I just got a barrled action for a hell of a deal and its a 300Win mag barrel was cut back and rechambered to 30-338Win I was wondering if it was worth the time to even play with it. Or should I just pull the barrel and sell it , it came with dies.
    I know that years ago they used to be popular but haven't heard about one in several years
     

  2. Ankeny

    Ankeny Well-Known Member

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    I have been using a .30-.338 for about 10 years and I love it. Great cartridge.
     

  3. Northman

    Northman Well-Known Member

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  4. Bart B

    Bart B Well-Known Member

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    I've had one of both versions of the .30-.338 for 25 years. The original (pioneered by Fred Huntington, RCBS) was based on the .338 Win. Mag. case necked down to 30 caliber. The .30-.338 Keele Mag. is a .300 Win. Mag. case run through a .30-.338 full-length die which makes the body the same but with a longer neck so a bit more powder might be used. I've shot several 15-shot test groups at 1000 yards with each and they all were under 7 inches.

    Both cartridges are two of the most accurate 30 caliber magnums based on the H&H style belted case. Both have won lots of 1000-yard prone and benchrest matches.

    Favorite accuracy loads use IMR4350 powder under Sierra HPMK bullets; 65 to 66 grains with 190's and 64 to 65 with 200's. Milder primers typically give best accuracy.
     
  5. abinok

    abinok Writers Guild

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    yep,
    Good cartridge!
    Got lots of load data if you want it... sierra has published data too.
    It will do most of what 300Wm will do, with a couple of grains less powder.
     
  6. DougH9

    DougH9 Well-Known Member

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    I just recently put together a 30-338 rifle, and I like it a lot. It was my pick of all of the 30 cal. cartriges out there, and I do not regret my choice.
     
  7. sewwhat89

    sewwhat89 Well-Known Member

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    [ QUOTE ]
    The .30-.338 Keele Mag. is a .300 Win. Mag. case run through a .30-.338 full-length die which makes the body the same but with a longer neck so a bit more powder might be used.

    [/ QUOTE ]

    Bart, is that as simple as you have it typed? Imperial lube some Lapua or WW 300WM cases in a 30-338 FL die? That would be especially nice when the shot count goes up and you can chase the lands out a bit further.
     
  8. Bart B

    Bart B Well-Known Member

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    [ QUOTE ]
    (The .30-.338 Keele Mag.) . . is that as simple as you have it typed? Imperial lube some Lapua or WW 300WM cases in a 30-338 FL die? That would be especially nice when the shot count goes up and you can chase the lands out a bit further.

    [/ QUOTE ]I think so. Use an expander ball in the full-length die to iron out the dimple ring in the Keele case neck where the original .300 WM shoulder-neck junction was. Don't turn/uniform any necks until after the Keele case has been fired once. That dimple ring doesn't seem to hurt accuracy at all.

    When I got my first .30-.338 Keele barrel, I ran 40 new .300 WM cases through my RCBS die, then seated Sierra HPMK 190's in half and 200's in half. Tested 'em at 1000 yards with a few sighters to center up then back to back 15-shot groups with each. Both groups were about 5 inches high and 6 inches wide; didn't correct for any wind. The group of 190's was centered 5 inches above the middle of the group of 200's. New cases are just fine with me......

    However, if one plans on lengthening an existing standard .30-.338 chamber, be sure the floating pilot on the necking reamer is a proper tight fit in the rifling and will only lengthen the chamber neck keeping it at the same diameter. This is a tricky process and I'd just as soon have the barrel set back one tenon length and use a Keele reamer to make a new chamber. But some 'smiths do great stuff with great tools used in great processes.
     
  9. sewwhat89

    sewwhat89 Well-Known Member

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    Can you post a pic of the difference between the two cases? Or send me samples if you have some old culls?