Barrels interchangeable?

Discussion in '223 / 5.56 MVP and Variants' started by REDdawn6, Jan 3, 2014.

  1. REDdawn6 Member

    Member Since:
    Dec 2, 2013
    Message Count:
    42
    Hey guys! I have a patrol that I just got, sweet rifle but need to get to the range. Is there any reason I can not interchange a varmint or predator barrel for longer shooting? Thanks, RD6
  2. wood chucker Moderator

    Member Since:
    Dec 19, 2012
    Message Count:
    1,605
    None whatsoever.

    If you want to do a switch barrel set up so you can go back and forth with no muss no fuss talk to Sharky47.;)
  3. Chuck S Active Member

    Member Since:
    Nov 15, 2013
    Message Count:
    218
    I'm not sure "no muss no fuss" is accurate. Changing the barrel requires checking and probably adjusting the rifle's headspace -- finding a bolt that headspaces could be a problem and you may need a separate bolt for each barrel. And the rifle will need to be rezeroed each and every time.

    These are not designed to be "quick change" barrels. A one-time conversion makes sense. A little, anyway. Two rifles makes the most sense.

    -- Chuck
  4. Ken Livengood Member

    Member Since:
    Mar 12, 2013
    Message Count:
    33
    I had a few of the MVP's apart to re barrel. so far they all measured the same. I dont use the bbl nut with a custom bbl. just shoulder them up
    like a remington. All the barrels i fit so far would interchange . They included ,Patrol, and Varmint, this is amazing for a Production rifle.

    Don't know if I I put this across that anyone understands, But to answer your ? , Yes barrels will interchange. BUT headspace will need to be set
    and adjusted. Just like a Savage.
  5. Shaun Member

    Member Since:
    Feb 13, 2013
    Message Count:
    50
    Wow, look for a bolt that headspaces? Separate bolts for each barrel???? You really don't know a thing about what you're talking about do you? Read that on AR15.com?

    As mentioned above, these guns are set up like Savages which are popular for switch barrel conversions. A headspace gauge is $25, and the other tools aren't that expensive either. I have a Stevens 200 I converted from 308 to 6.5 CM and it wasn't a lot tougher than assembling an AR15 upper.

    It probably isn't for everybody, but if you have enough mechanical aptitude to reload 223, you can probably stagger through it the first time. After that, it'll be routine.
  6. wood chucker Moderator

    Member Since:
    Dec 19, 2012
    Message Count:
    1,605

    If you use the double lock nut set up like Sharky47 did for Gordon Dempseys switch barrel 5.56 & .300 Blackout rig then head space is set once per barrel per gun on initial instal. After that it's change back and forth as much as you like.

    Heres a link to one thread about Gordon's switch barrel rig.
    Currently he is using Talley return to zero rings and mounts because he also switch scopes too.

    http://mossbergmvp.com/index.php?threads/interchangeable-barrels-and-scopes.315/#post-2924
  7. Ken Livengood Member

    Member Since:
    Mar 12, 2013
    Message Count:
    33
    What im trying to say, Is when I chamber a barrel, I use the
    h.s. gauge to set it up when chambered, WITH A SHOULDER. after that you can remove and install, at will and it will be headspaced.
    Factory bbls, are set up like a savage, with bbl nut.and you need a H.S. gauge every time you reinstall it.
    There is NO need to have a seperate bolt for each barrel, UNLESS you are changing the size of your boltface.
    I have chambered and fit up over 600 barrels in the last 30 years.
    MVP's are not AR 15's
  8. Bobmvp Member

    Member Since:
    Aug 25, 2013
    Message Count:
    34

    Ken

    When you have rebarrel'd MVP's what barrels did you use. Stock? or aftermarket?
  9. Ken Livengood Member

    Member Since:
    Mar 12, 2013
    Message Count:
    33
    I use what i can get or afford. I did 2, 223 varmint's in 8 twist Hart. 2,223 in 8 twist Green MT. 2, 300 whisper with 8 twist Green mt.
    I did 1 in 6x45 Hart 14 twist. that one shoots like a BR rifle. I have 2 hart bbls here now, one 6mm the other 12 twist ,22 ,that will be a
    221 Fireball. I also have a Krieger 1-11, 30 cal , for my 7.62 MVP but that gun shoots so good i'm going to leave it alone.
    the only reason for re barreling the 223's was to put an 8 twist bbl on to shoot 77 and 80 grain bullets. they all shot well with 69 gr, but would tumble the 80"s

    It is possible to fit the stock bbl with a shoulder. there not machined like a savage. have to cut back of bbl off +- .470 and run reamer in to re headspace it. did that a few times also. if you look at the drawings of an MVP barrel tendon, in the stickies. you'll see what I mean.
    oh, I also turned the threads off and re fit a remington 223 ,5R bbl for a guy.
    all pays the same.
  10. Denny L New Member

    Member Since:
    Feb 18, 2015
    Message Count:
    27
    I want a one time switch in 308 from Varmit to Patrol
    wood chucker likes this.
  11. bombadillo Moderator

    Member Since:
    Mar 19, 2012
    Message Count:
    546
    Easy peezy.

Share This Page