Mossberg 590 3'' chamber

Discussion in 'Firearms' started by Wegahe, Dec 25, 2016.

  1. Wegahe

    Wegahe NRA Instructor

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    For those who know anything about this shotgun I have a dumb question.

    Can you use a 2 3/4'' shell in it?

    This is dumb because I don't own a shotgun and never have so I have no clue as to how to answer it.
     

  2. a_springfield

    a_springfield Well-Known Member

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    You can always (as far as I know) go shorter on any shotgun.
     
  3. kineticmind

    kineticmind يفخر الكافر

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    Yep, it accepts up to 3" shells. You'll just be able to hold more 2 3/4" shells in the mag tube, but it'll cycle them fine.
     
  4. Wegahe

    Wegahe NRA Instructor

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    Thanks! I actually later downloaded the owners manual and found the answer after posting this. Which is what I should have done first.
     
  5. gunsmoker

    gunsmoker Lawyer and Gun Activist

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    Here's another weird thing about shotgun shell length and chamber measurements:

    The figure quoted on a shotgun shell, or the box it came in, is the length that the shell WILL BECOME after it's fired and the crimp on the end is blown-out.
    If you measure the unfired shell, it will quite a bit shorter than the given measurement.

    A 3-inch shotgun shell is really something like 2.7" long, but it's ONLY for use in a 3" (or longer) chamber, because of how the crimp unfolds when the pellets come out.

    Modern 12-gauge shotguns sometimes have a 3.5" chamber, for those extra-long magnum shells made for turkey, ducks, or geese (big birds, often shot at the longest possible ranges). It's perfectly OK to use "normal" 12 gauge 2 and 3/4" chamber-approved shells in those.
     
  6. Wegahe

    Wegahe NRA Instructor

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    I may have to get me a shotgun after all this. I was buying some target loads and clay targets as a birthday gift for someone.
     
  7. gunsmoker

    gunsmoker Lawyer and Gun Activist

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    Yeah, I've had two of these combo-packs in my time. 12 gauge and 20. Each with one long sporting barrel and one shorter slugs / buckshot/ home defense barrel.

    I don't think a dedicated "combat only" shotgun is worth it for me. I've got handguns and carbines for battle. I want my shotgun to primarily be sporting, for busting clays or hunting game. But for $79 extra, it's not much of an investment to get the short barrel to go along with the long 26" or 28" sporting barrel.

    And for the 12-gauge guns, you can get a magazine extender tube that will let your gun hold 9 or 8 rounds, instead of the usual 5 or 6.
     
  8. Wegahe

    Wegahe NRA Instructor

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    In my searching I also found some 10 round drum and 10 round box mags for Mossberg 88's/500's and 590's. Both require modification but are not that expensive.
     
  9. Headspace

    Headspace Member

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  10. gunsmoker

    gunsmoker Lawyer and Gun Activist

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    Wegahe, as you may recall I've organized a GCO/ GPDO shotgun shoot event for most of the last several years, usually in the fall when the weather gets comfortable for being outside in the sun for hours at a time.

    If you'd like to go to the Wolf Creek clay target range off Camp Creek, near Fulton Ind. Blvd, I'll bring out my Mossberg 20 ga. and both of its barrels.
    We can run a bunch of birdshot through it.
    They have a steel plate backstop off to one side, so we can hang up some cardboard or paper to check the pattern, too (only with birdshot).

    I find that with low-brass birdshot loads, the 12's and 20's have similar recoil, especially when the 20 is a youth model and sized-down to be lighter than the typical 12 gauge.
    Only when you start shooting slugs and buckshot do you feel a significant difference, although both of them kick hard, and there's nothing "low recoil" about a 20 gauge slug load (7/8 ounce slug = about 400 grains, launched at about 1300 f.p.s. That's the power level of a .454 Casull).
     
  11. Wegahe

    Wegahe NRA Instructor

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    I have just never been into shotguns but it does sound like this would be something I need to at least give it a shot. (so to speak.)

    If it looks like there will be a semi nice day at some point next year I would like to take you up on this.