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Posted: 11/14/2003 3:52:34 AM EDT
The new Hornaday-Ruger .204 shoots a 32 grain bullet at 4225 fps and is based on the 222 mag. The existing 222 mag case is .285 with a loaded OAL of about 2.30. It will be interesting to see if this new caliber can be used in existing AR mags. I feel the need for a new varmint upper coming on. Has any one tried an upper for 222 mag?
Link Posted: 11/14/2003 6:11:59 AM EDT
I'm curious why they based the cartridge on the 222 mag rather than the 223.
Link Posted: 11/14/2003 6:56:54 AM EDT
[Last Edit: 11/14/2003 6:58:49 AM EDT by blikbok]
(Pictures from http://stevespages.com/page8d.htm ) 223 Remington: [img]http://stevespages.com/jpg/cd223remington.jpg[/img] 222 Remington Magnum: [img]http://stevespages.com/jpg/cd222remingtonmagnum.jpg[/img] I'm guessing that the 222 Mag brass being .09 inch longer helps, for one of two reasons. It could make for a better-formed neck for the smaller bullet, or it the the shoulder far enough forward to give a little more powder capacity. But I'm not a reloader. :)
Link Posted: 11/14/2003 8:32:26 AM EDT
Originally Posted By ddc: I'm curious why they based the cartridge on the 222 mag rather than the 223.
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Probably because a .223 necked down to .20 already exists...the .20 Tactical.
Link Posted: 11/14/2003 2:57:26 PM EDT
I have built 4 Tactical 20's and all of them shoot amazingly well. 5 shots under 1/2" at 100 is no problem. Smallest group shot to date, went into .158". As soon as the final dimensions are blessed on the .204 Ruger and reamers become available, I'll do one up in .204 Ruger. I keep the .20 caliber Pac-Nor Super Match barrel blanks in stock at all times so the lead time will be short. Tony Rumore Tromix Corp
Link Posted: 11/14/2003 3:37:31 PM EDT
Tony: Please let me know when you have working models.
Link Posted: 11/18/2003 8:52:07 AM EDT
You can achieve simaler ballistics with 55gr bullet chambered in 222 mag as a 55gr 22-250 with load development. Less powder, less recoil, same speed. You can't loose. Although brass will naturally be more expensive than 223 and if you don't reload, 222 mag factory ammunition cannot be had at wal-mart or just about anywere else for that matter.
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