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Cartridges interchangeable with a 308 receiver

Discussion in 'Rifle Country' started by Hog huntin Harry, Nov 30, 2019.

  1. Hog huntin Harry

    Hog huntin Harry Member

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    Are there any cartridges that are interchangeable with a 308 receiver so all I would have to get is a new barrel, bolt, ect ?
     
  2. mcb

    mcb Member

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    What kind of receiver? There is a huge variety of cartridges similar to and even based on the 308 Win that can probably be swapped in. A little more info on the particular gun and use might help us guide you.
     
  3. troy fairweather

    troy fairweather Member

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    What action
     
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  4. newfalguy101

    newfalguy101 Member

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    The .308 Win has spawned:

    243
    260
    7mm-08
    358


    And probably another dozen wildcats.

    The 22-250 I think has the same size case head
     
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  5. Varminterror

    Varminterror Member

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    Any short action cartridge 2.80” COAL and with a .473” bolt face can be transplanted with only swapping the barrel, not changing the bolt. Anything based on the 308win case, like 243, 260, 7-08, 338fed, or 358 win or anything based on the Creedmoor case like 22, 6, and 6.5 creed. More exist, but these would be the easiest. In theory, 284 Winchester or .220 Swift (might not feed well with the rims?) could be dropped into an AR-10 as well, although I’m not sure anyone has? 45 Raptor, 22-250, and a plethora of others, before we’ve even swapped bolt faces - which isn’t as common as it is in AR-15’s when swapping from 223 to 6.5 grendel to 6.8 spc to 458... If using a bolt gun, then swapping bolts, barrels, and mag boxes can gain access to some fun stuff like WSM’s/RSAUM’s/RCM’s, or 6.5 PRC.

    If a Tikka, then you’re really holding a long action, such you could swap around some additional parts and have access to anything, long, short, mini, standard, or magnum.
     
  6. mcb

    mcb Member

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    338 Federal is also a direct 308 Win derivative.
     
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  7. Hog huntin Harry

    Hog huntin Harry Member

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    Its a Savage axis 308 receiver
     
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  8. troy fairweather

    troy fairweather Member

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    There a long action so there more to ad to the list.
     
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  9. someguy2800

    someguy2800 Member

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    There are litterally hundreds of cartridges that you can rebarrel that to with just a barrel swap. What kind of cartridges are you thinking about or what kind of uses do you have in mind?
     
  10. redneck2

    redneck2 Member

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    It’s almost more of a question of what wouldn’t work. Nearly anything that doesn’t have a magnum bolt face
     
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  11. Varminterror

    Varminterror Member

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    It’s a Savage, change the bolt head, magbox, and barrel, and the world is your oyster.
     
  12. Archie

    Archie Member

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    Depending on length of magazine and bolt throw, the bolt face and pressure level of the action will handle anything based on .308 Winchester, .30-06 or the Mauser cartridges with 8x57mm head sizes. Even .45 ACP, but you'll probably have to fiddle with the feeding.
    Rather widespread.
     
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  13. Hog huntin Harry

    Hog huntin Harry Member

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    Well I'm wanting a cartridge that has pretty good stopping power up close, so how about 358 win ?
     
  14. Varminterror

    Varminterror Member

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    Fine choice. In 2020 and beyond, I might lean 338 Fed over 358win, but either fit the bill.
     
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  15. LoonWulf
    • Contributing Member

    LoonWulf Contributing Member

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    There is and issue with the Axis going to the magnum bolt head. It requires a longer firing pin (axis pin is non adjustable), or shortening the shank of the bolt head. The other problem is that if you shorten the shank on the bolt head like i tried, the cocking pin may impact the bottom of the slot in the bolt body before enough protrusion is reached.
    The magnum Axis project got dropped before i figured out if a magnum length firing pin/pin assembly would work, but i believe its the most likely, and cleanest solution to the problem.
    Im with VT, I like the idea of a .358, but the .338 may have better available bullet options. Another thought is since that IS a long action receiver, you could go to a .35Whelen if you wanted to stick with factory ammo, or the AI version of the Whelen, or the .338-06.....
    Those latter options are probably just my personal bias about having the correct round/action length (or what i THINK is correct anyway)
    OR hey, you could do what im doing right now and build a .375 Raptor, cause....well.....cause...
     
  16. hq

    hq Member

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    Correct. I'm a bit disappointed that the .338Fed hasn't caught on. IMO it's a great hunting round, .308 on steroids without some of the drawbacks of .358Win. Reloading necked-up .308 brass will solve this, but my .308 annual round count and ready availability of cheap, decent surplus ammo in bulk quantities has kept me from (re)chambering anything to Fed for now.
     
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  17. jmr40

    jmr40 Member

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    Both the 338 Fed and 358 are a step down from what a 308 will do and both have recoil that matches 30-06. That is why they never caught on. The same problems explain why 30-06 beats both 338-06 and 35 Whelen.

    A bullets sectional density (SD) is the best predictor of how deep it will penetrate into game. SD is determined by the ratio of bullet weight to diameter. If you have 2 bullets of the same weight in 2 different calibers, the smaller caliber will always penetrate deeper.
    Assuming you are shooting the same type bullet and hit the same spot. On deer size game most any decent bullet will give more than adequate penetration, but as you move up to larger game, and need to stop them quickly, then penetration becomes more important.

    Bullets with a SD of about .270 are considered the minimum adequate for good penetration on really large tough game. A .308/180 gr bullet has a SD of .271. While not an option in factory loads its no trick to load a 200 gr in 308 to get a SD of .301. I wouldn't load 'em in a 308, but 220's work nicely in 30-06, in fact that was the original bullet weight for 30-06 and they have a SD of .331.

    The most common bullet weights for 338 Fed are 180 and 200 gr with SD's of .225 and .250 respectively. Just to get adequate penetration for bigger game you need to move up to a 225 gr bullet to get a SD of .281 and that is well behind the .308/200 gr option.

    The 358 is worse. The most common bullet weight for 358 is 200 gr with a SD of .223. You need to be shooting 250's just to reach .279. I've never seen a factory load for either 338 Fed or 358 that offer bullets with a SD of .270 or greater. In fact it is hard to make it work even with handloads.

    If you have a 308, or 30-06 for that matter, and are looking for something with good close range stopping power then simply load heavier bullets in what you have.
     
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  18. redneck2

    redneck2 Member

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    Thing is, how much penetration do you really need?

    I had a .358 WSSM shooting 180’s at maybe 2,650-2,700ish. Blew completely through a deer at a lazered 279 yards. DRT. Exit wound was quite impressive

    Maybe light for elk or moose, but worked plenty well for me.
     
  19. someguy2800

    someguy2800 Member

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    Your logic is flawed because it does not scale. Using sectional density alone ignores kinetic energy. By your logic rounds such as a say a 240 grain 44 magnum, a 300 grain 45-70, or a 50 caliber round ball would inappropriate for hunting, but reality proves that is not the case.
     
  20. Nature Boy

    Nature Boy Member

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    Someone with the ability of divine intervention should go back and resurrect the countless deer I’ve killed over the last 30+ years and tell them the .358 win wasn’t adequate.
     
  21. Hog huntin Harry

    Hog huntin Harry Member

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    You know, I'd just feel better with something that could stop one of those 600 pound new Jersey blackies in it's tracks.
     
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  22. Steve S.

    Steve S. Member

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    Again, we split hairs on what caliber will effectively dispatch common North American game animals. I would guess that most calibers that would function in that action will take game effectively - pick one that you fancy and build away. I am old school and favor the .308 but there are countless others to choose from.
     
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  23. js8588

    js8588 Member

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    I'd go 338 Fed for this.
     
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  24. troy fairweather

    troy fairweather Member

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    I'd like a 358 over the 338 federal. But would not mind both.
     
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  25. Hog huntin Harry

    Hog huntin Harry Member

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    How much trouble would it be to build a 44 mag out of it ?
     
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