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Can I use 2 3/4" loads in an 870 Marine Magnum?

Discussion in 'Shotguns' started by IMtheNRA, May 30, 2005.

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  1. IMtheNRA

    IMtheNRA Member

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    Hello, I was wondering if the common, non-magnum 2 3/4" ammo, such as birdshot, buckshot, and slugs can be reliably used in the 870 Marine Magnum with a 3" chamber. Are there any risks to feeding and ejection, effects on accuracy, or a buildup of plastic in the longer chamber?
     
  2. A Cleaner

    A Cleaner Member

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    Yes you can. The chamber measurement is the upper limit of shell size that can fit, not a demand for that specific shell size.

    Chamber 2.75 - 2.75 shells
    Chamber 3.00 - 2.75, 3.00 shells
    Chamber 3.50 - 2.75, 3.00, 3.50 shells
     
  3. Dave McCracken

    Dave McCracken Moderator In Memoriam

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    Yes. AC nailed it. One small thing, though....

    In theory, patterns may not be as efficient when shorter shells are used in a longer chamber. I doubt anyone can quantify it.To quote the Mafia, "Fuggedaboudit"....
     
  4. Fred Fuller

    Fred Fuller Moderator Emeritus

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    Not only can, but SHOULD. The lighter 2.75" loads will handle 95% of what you need to do with a short shotgun if not more, with less drama and cost than the roman candle 3" stuff.

    It's a TWELVE GAUGE after all...

    lpl/nc
     
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