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QuestionableMaynard8130
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.25 rimfire
Oct 21st, 2011 at 7:47pm
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I'm new to the quarter-bore family of traditional cartridges.  Assuming a standard 25 rimfire rifle barrel with an excellent bore.  what other cartridges could it be rechambered for---assuming the block was reworked for center fire.
  

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frnkeore
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Re: .25 rimfire
Reply #1 - Oct 21st, 2011 at 7:56pm
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It could be rechambered to 25 Hornet (22 WCF necked up) or 25/20ss. That would be my preferred calibers.

Your problem will be the twist, I think the standard twist for 25rf was 17 but, the Lyman 257420 should stabilize in that twist. I can shoot it in my 18 twist Ballard.

Frank
  

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BP
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Re: .25 rimfire
Reply #2 - Oct 21st, 2011 at 10:49pm
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Slug your barrel first. Some of the rimfire bore dia's run a bit smaller than with the centerfires. If your reamer has a removeable pilot, no big deal, but if it's a solid pilot reamer, you may need to have the pilot ground down slightly.
  

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waterman
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Re: .25 rimfire
Reply #3 - Oct 22nd, 2011 at 3:18am
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I have a Stevens Model 47 on a 44 action with a 25 cal Stevens barrel with a 17" twist.  It is chambered for 25-20 SS.  It shoots 87 grain bullets very well, even the pointed ones.  I have not yet slugged it.
  
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bisaacson
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Re: .25 rimfire
Reply #4 - Oct 23rd, 2011 at 5:25pm
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As an alternative to converting the rifle, you could check out the June '10 edition of the SSE to see how to make ersatz .25 Stevens RF cartridges. My Stevens Marksman shoots quite well with a 65 gn. cast bullet using brass formed to make a shell primed by empty .22 brass, and I have an unaltered rifle.
  
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marlinguy
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Re: .25 rimfire
Reply #5 - Oct 24th, 2011 at 11:37am
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bisaacson wrote on Oct 23rd, 2011 at 5:25pm:
As an alternative to converting the rifle, you could check out the June '10 edition of the SSE to see how to make ersatz .25 Stevens RF cartridges. My Stevens Marksman shoots quite well with a 65 gn. cast bullet using brass formed to make a shell primed by empty .22 brass, and I have an unaltered rifle.


Guess I'm gonna have to find that issue! I've got a couple singles in .25 Stevens RF and I'd sure love to shoot them more!

DWS, One thing to consider is what action you're considering in the conversion. There are a few guns that are chambered in .25RF that should never be chambered in any CF .25 caliber.
  

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AJ
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Re: .25 rimfire
Reply #6 - Oct 24th, 2011 at 8:53pm
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I wonder if anyone has considered converting 25 Stevens rimfire to 25ACP (similar to converting 32 rimfire Long to 32 S&W).  The ACP is a semi-rimmed case and compared to the 25 r.f., the case diameter is identical and the bore diameter is identical.  The ACP is, of course shorter and rim diameter is smaller and the rim is, I think, thinner.

This might not be a practical solution....Just asking...
  
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MIKE-T
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Re: .25 rimfire
Reply #7 - Oct 25th, 2011 at 9:28am
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Not a bad idea if the bore of the rifle is .251 it should work with reloads, but have you ever tried to reload the 25acp? I did years ago, not much fun and those tiny cases will crescent your finger tips  Cry if you do not pay attention.
Mike

AJ wrote on Oct 24th, 2011 at 8:53pm:
I wonder if anyone has considered converting 25 Stevens rimfire to 25ACP (similar to converting 32 rimfire Long to 32 S&W).  The ACP is a semi-rimmed case and compared to the 25 r.f., the case diameter is identical and the bore diameter is identical.  The ACP is, of course shorter and rim diameter is smaller and the rim is, I think, thinner.

This might not be a practical solution....Just asking...

« Last Edit: Oct 25th, 2011 at 9:35am by MIKE-T »  
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Re: .25 rimfire
Reply #8 - Oct 29th, 2011 at 3:38pm
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[/quote]

Guess I'm gonna have to find that issue! I've got a couple singles in .25 Stevens RF and I'd sure love to shoot them more!

[/quote]

If you don't/can't find it, LMK, I have the issue and would be happy to copy the article and send it to you.
  
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Re: .25 rimfire
Reply #9 - Oct 29th, 2011 at 5:00pm
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If it is a .251 bore why not a 297/250 Rook? Takes 50gr 25ACP bullets and you can get about 1200fps. Based on a shortened 22 Hornet case. I know where a reamer is at........ Wink

Ed
  
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QuestionableMaynard8130
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Re: .25 rimfire
Reply #10 - Oct 29th, 2011 at 7:13pm
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Until I get my hands on the barrel and Etc in another month I have no ides what the twist exact dimensions etc are.  I have been told the barrel is threaded for a #2 roller and I'm also getting that action so It'll go back on that action in all probability.   I've gotten inordinately fond of those little #2s
  

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