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REMINGTON 722, 222 to 223?

recon5
What are the steps needed to rechamber a REMINGTON 722, 222 rem to 223 rem, and how hard should it be?
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8 comments

Date Votes
  • rufe-snow
    Most likely all you would do is to ream the chamber. Might be able to do it with just a finishing reamer?

    Be advised though that rifles chambered for the 222 used either a 1 in 12 or 1 in 14 rifling. This would cause problem in the heaver bullet weights available and commonly used in .223. Your going to have to try it to find out.
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  • BT99
    Rufe- You're right about doing it with a finish reamer. Did several that way. Even ruined two rifles. A sako and an Anschutz,
    Fellow wanted them reamed from 222 to 223. Told him it would ruin the value of the rifles and he said do it or I'll get someone else to do it. So I did even though I felt that I was ruining them.
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  • XXCross
    You do know the 722 has the wrong twist for anything but the lighter bullets ?
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  • dcs shooters
    We rechambered a Rem. 700 varmit from 222 to 223. There is only .060 difference in the length. Check the twist rate to go with a bullet rate that works with it.
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  • edharold
    I have rechambered both a older Remington 700 and a model 600 from 222 to 223. I have not tried bullets heavier than 55 grain but both shoot the 50 and 55 grain extremely well. Counted for a lot of prairie dogs, ground squirrels and a couple of coyotes.
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  • tsr1965
    I'm with Rufe. There would only need to be a finish reamer used to run it to 223. That is the way I would go too, as there is no need to create a deficiency of brass for yourself by going to the 222 Magnum, when it, and the 223 are virtually twins when it comes to performance. I would assume that is the reason for getting away from the 222, is the lack of factory fodder for it.

    Best
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  • dfletcher
    quote:Originally posted by edharold
    I have rechambered both a older Remington 700 and a model 600 from 222 to 223. I have not tried bullets heavier than 55 grain but both shoot the 50 and 55 grain extremely well. Counted for a lot of prairie dogs, ground squirrels and a couple of coyotes.


    Having a bunch of both I'd agree that up to 55 grain should be fine. My favorite type for either chambering is the 52 grain BTHP - the 223 will do that fine, probably even with a 1 in 14" twist.
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  • 47studebaker
    Why ? (I know because you want too and because you can) They aren't stopping making 222 cases are they? My 722 shoots 5 shots under a nickle at 100 yards with "factory" Rem ammo, that why I don't reload for it.
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