ASSRA Forum - 222 Rem magnum

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222 Rem magnum (Read 295 times)

jhm Frequent Elocutionist Offline Posts: 1756 Location: georgia Joined: Sep 4^th, 2011	222 Rem magnum Jun 26^th, 2025 at 5:25am	Print Post
	Anyone have experience with this round? Have a friend who wants me to rechamber his 222 to 222 magnum. The magnum round is .100 longer than the standard round with a little difference in the neck area. As best as I can tell the chamber should clean up. Any thoughts ideas or advise? I have found the reamer with head space gages available for rent. JMH


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gewehrfreund Senior Forum Member Offline Posts: 441 Location: Cortland Joined: Jan 24^th, 2005	Re: 222 Rem magnum Reply #1 - Jun 26^th, 2025 at 7:30am	Print Post
	A waste of time and the devaluation of a good rifle. It will probably not be as accurate as the original 222, and it would be better to just rechamber to 223 Rem, if it really needs to be done. JMO


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calledflyer Frequent Elocutionist Offline Posts: 3720 Joined: Mar 9^th, 2015	Re: 222 Rem magnum Reply #2 - Jun 26^th, 2025 at 9:27am	Print Post
	Some forty years ago I had acquired an older benchrest rifle that was in .222 Rem- retired due to changing trends and a bit of worn throat. I had the idea to redo it to the .222 mag, but a friendly gunsmith said the same thing- skip it and just go for the .223. Even in those days the .222 brass was semi scarce, but could be made (to no advantage) from the GI round as well as the commercial fixings. The thing became a pretty good varmint gun and is probably still doing well, wherever it may now be.


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jhm Frequent Elocutionist Offline Posts: 1756 Location: georgia Joined: Sep 4^th, 2011	Re: 222 Rem magnum Reply #3 - Jun 27^th, 2025 at 6:57pm	Print Post
	Friend says his reason is he has a boat load of the 222 mag ammo and nothing to shoot it in. If he insists will the 222 chamber clean up to the mag dims? JMH


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jhm Frequent Elocutionist Offline Posts: 1756 Location: georgia Joined: Sep 4^th, 2011	Re: 222 Rem magnum Reply #4 - Jun 27^th, 2025 at 6:58pm	Print Post
	Friend says his reason is he has a boat load of the 222 mag ammo and nothing to shoot it in. If he insists will the 222 chamber clean up to the mag dims? JMH


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craigster Oldtimer Offline Posts: 736 Location: lost coast CA Joined: Feb 20^th, 2011	Re: 222 Rem magnum Reply #5 - Jun 27^th, 2025 at 10:51pm	Print Post
	Sell/trade the mag ammo for std. Leave the rifle alone.


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frnkeore Frequent Elocutionist Offline Posts: 7434 Location: Central Point, OR 97502 Joined: Jun 16^th, 2010	Re: 222 Rem magnum Reply #6 - Jun 28^th, 2025 at 3:15am	Print Post
	According to the SAAMI chamber drawings, the chamber will clean up, when cut to 222 Mag. The throat is the same as the 222 Rem. I don't understand the aversion to the 222 Mag. If it's limited brass, the 17 Remington is almost the same length as a trimmed 222 Mag. I don't think the rifle would know.
	« Last Edit: Jun 28^th, 2025 at 3:35am by frnkeore »
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Bent_Ramrod Frequent Elocutionist Offline Posts: 1515 Location: Southern Arizona Joined: Feb 8^th, 2006	Re: 222 Rem magnum Reply #7 - Jun 28^th, 2025 at 9:40am	Print Post
	If he has the brass and the curiosity, why not? The chamber should clean up since the only difference is length. The .222 Magnum was George Leonard Herter's preferred cartridge in a rifle of that type, and he tolerated nothing but the absolute best of everything, made from the finest materials by the most skilled craftsmen and sold at the fairest prices. As far as I can see from what I've read, the only reason for the demise of the .222 Magnum and the eclipse of the .222 Remington was the fact that you can fill a bucket with reloadable .223 Remington empties in five minutes at any rifle range for free, and the ballistics of loads made from such are indistinguishable from those of the other cases. I have a .22 varmint rifle that somebody rechambered for an "improved" case halfway between a .219 Donaldson and a .219 Zipper Improved. The internal capacity is just about that of a .222 Magnum and it shoots very well.


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