[ASSASSIN]

I build a lot of H&R and T/C Contender barrels that are chambered for the 221 Fire Ball - Rimmed as well as the 17 Remington Fire Ball - Rimmed. Both use Remington's 357 Maximum brass...

For use in the T/C Contender, if you start with a 221 Fire Ball chambering, a simple rim counterbore can be cut to allow the use of 357 Maximum brass. A 22lr. or 22 magnum can also be rechambered to the 221 Fire Ball - Rimmed, just like the 17 HMR can be rechambered to the 17 Fire Ball - Rimmed...

In most all cases, a "rimmed" cartridge has greater accuracy potential in a break open single shot because it allows for better control over headspace...

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[ASSASSIN]

As a side note to my post above, to keep from loosing any brass because of necking it down from .35 caliber to .22 or even .17 caliber, it should first be annealed...

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[ASSASSIN]

....... and I'll cut the rim counterbore at "no charge"....

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[ASSASSIN]

Yes, the 357 magnum can also be necked down to .224 caliber and does produce an excellent cartridge as well. In the Contender and G2, rechambering both the 22 long rifle and 22 magnum to the 22X357 makes for an excellent little varmint round. Also, most 22 long rifle barrels have a 1-16" twist while most 22 magnums have 1-14" twist rate barrels. For the most part, if you are gonna shoot bullets of 45 gr. and lighter, go with a 22 lr. rechamber but, if you want to shoot bullets up to 55 gr., them go with a 22 magnum rechamber....

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