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Joined: Nov 2008
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OP
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I have a later model Ruger #1B in .243 and would like to find out if I can do a simple rebore to 6.5x55. I don't want to rebarrel or make it a big project, just keep the original barrel the way it is. Im happy enough with the .243, just think a 6.5x55 1B would be the cats a$$. If it can be done, who would be good to do it? Thanks 021
"Never force anything, just get a bigger hammer".
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Joined: Jul 2001
Posts: 60,119
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,119 |
One possible problem would be whether the 6.5x55 chamber would clean up the shoulder of the .243 chamber. I've used Classic Barrel and Gun Works ( www.cutrifle.com) for several rebores, with excellent results. You might want to talk to them.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Joined: Nov 2008
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Campfire Regular
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OP
Campfire Regular
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Thanks, I'll give them a call.
"Never force anything, just get a bigger hammer".
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Joined: Aug 2005
Posts: 5,509
Campfire Tracker
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Campfire Tracker
Joined: Aug 2005
Posts: 5,509 |
Don't go into the 260 briar patch, which would clean up a 243 chamber without barrel setback, feed identical to the 243, and give the same or better performance than a 6.5x55.
"Live like you'll die tomorrow, but manage your grass like you'll live forever." -S. M. Stirling
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Joined: May 2011
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Campfire Ranger
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Campfire Ranger
Joined: May 2011
Posts: 15,894 |
and, it's on...
Last edited by OSU_Sig; 11/15/14.
There are 2 rules to success:
1. Never tell everything that you know.
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Joined: Jan 2001
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Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
Posts: 7,988 |
Will a reboring service do a rebore for that amount of bore difference? I was under the impression from others I've talked to and on this forum that the minimum that most rebore outfits won't do a rebore under 2 calibers difference in order to clean up the original bore completely.
Bob
Never underestimate your ability to overestimate your ability.
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Joined: Jun 2004
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Campfire Tracker
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Campfire Tracker
Joined: Jun 2004
Posts: 7,177 |
That only applies in some instances. For instance, one cannot take a 25 caliber barrel to 6.5mm since the nominal bore diameter of a 6.5mm is smaller than the groove diameter of the .25 (256 vs 257+). Another case would be the 270 to 7mm. Someyimes, if a throat is badly burnt out, the surface won't ream well and it is difficult to get a good finish in that portion of the bore so one might have to go up another size. The 6.5x55 will not clean up the 243 chamber. One would have to go with a 65x55 AI. As mentioned, the 260 would work perfectly and there would not be enough difference in performance to mention. GD
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Campfire Regular
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Greydog, How about .243 to .257?
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Campfire Ranger
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Campfire Ranger
Joined: Jan 2001
Posts: 21,317 |
I don't think the 6.5X55 will work because the body of the 6.5X55 tapers more steeply than the .243.
If you're not averse to wildcats, I'd look at one based on the 444 case as IMHO single shots and rimmed cases just go together.
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