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Redsetter
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Re: #4 RB extractor operation
Reply #15 - Sep 6th, 2013 at 10:50pm
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jhm wrote on Sep 6th, 2013 at 9:09pm:
This post has me wondering now about a cast action Ballard I want to rechamber from 32 rf/cf to 25/20 Win. When I posted about it I didn't really get a good answer. Mr Taylor is this a safe conversion or should I go with 32 S/W long?

Thanks,
JHolland


.32 S&W Long, if I may be permitted an opinion (don't wish to offend you as I did Mr. Drinks!).  This is something I've already done with a #2 Ballard, & a more pleasant, accurate, & easy to load cartridge would be hard to find.  Most importantly, you'd be able to spare yourself the cost & aggravation of a relining job.

Just don't make the ignorant mistake I made of believing the idiot who rented me the finish reamer, telling me it was ALL I needed for the job...the first time I'd ever attempted such an operation.  Though the reamer was piloted, the pilot wasn't long enough to reach the throat--result (of course), an off-center chamber, as I found out the hard way.

Since I always orient the fire-formed cases the same way, I'm not sure this chamber defect degrades accuracy, but it still galls me that the jerk (out of business, I think) misinformed me.
« Last Edit: Sep 6th, 2013 at 10:57pm by Redsetter »  
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jhm
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Re: #4 RB extractor operation
Reply #16 - Sep 7th, 2013 at 1:24pm
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No offense taken! This is why I like this forum. There are a lot of people out there with a lot more experience in these matters than I have. I am an accomplished aerospace machinist but it is with aircraft parts which differ somewhat from firearms. Although machine work is for the most part the same. The reason for the caliber is I have the makings already and the barrel is toast. If I go with 32 long what would be the correct twist? 

Thanks,
JHolland
  
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Redsetter
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Re: #4 RB extractor operation
Reply #17 - Sep 7th, 2013 at 2:19pm
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My previous recommendation of .32 S&W assumed there was a .32RF barrel worth preserving...the situation with my #2.  But if you're obliged to reline or rebarrel, cartridge selection is wide open.  Maybe there's more to be said, in that case, for the .25-20.
  
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John Taylor
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Re: #4 RB extractor operation
Reply #18 - Sep 8th, 2013 at 1:37am
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My book shows that there were cast action Ballards in 44-40. The bolt thrust of the 25-20 and 32-20 ( 1,583 pounds) is about 100 pounds more than the 32S&W. The 44-40 is about 2,658. The Ballard that came apart in 40-65 would have had about 5,500 pounds of bolt thrust with a standard load.
  

John Taylor   Machinist/gunsmith
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jhm
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Re: #4 RB extractor operation
Reply #19 - Sep 8th, 2013 at 8:27am
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Mr Taylor,

Thank you for your factual response. There is always so much information to be gleaned here. I have cleaned and examined the action and found no signs 
of cracks or fatigue so I am comfortable with this round. My next problem is where to get a duplicate barrel. I can get a Win profile but it does not match the Ballard and my mill table is not long enough for duplication of a blank. Custom barrels are too expensive so they are not an option.

Thanks again,
JHolland

  
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firearmdoc
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Re: #4 RB extractor operation
Reply #20 - Sep 8th, 2013 at 8:58am
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Jholland,
Take a look at McGowen barrels. You should be able to pull them up with a Google search. I have used literally hundreds of their barrels for restoration work. If you send them your original barrel they will duplicate the contour for you. The price you will pay is much less than what you may expect. 

(You need to Login or Register to view media files and links);

Hope this helps.

Jesse
  
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John Taylor
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Re: #4 RB extractor operation
Reply #21 - Sep 8th, 2013 at 9:56am
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Plus 1 for McGowan. They can also fit the barrel to your action and may be able to do the chamber. I use quite a few barrels from them even tho I'm a dealer for GM. Gm does not always have what I need but they do try to help me by pulling some barrels out before they are octagon so I can contour the way I need them.
  

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jhm
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Re: #4 RB extractor operation
Reply #22 - Sep 8th, 2013 at 2:23pm
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Thanks for the info guys. I was thinking (dangerous I know) about maybe a half round octagon. I can do this with my machine but did Ballard ever have one in this configuration? Also what would be an adequate twist? 

JHolland
  
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SSShooter
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Re: #4 RB extractor operation
Reply #23 - Sep 8th, 2013 at 4:55pm
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Per the twist calculator I have, a .323" diameter 215gr bullet that is 1.1" long will be stabilized by a 12" twist. That is the 32cal bullet mould sold for Schuetzen by Buffalo Arms.
  

Glenn - Stevens 044 1/2, Bartlein SS 5R barrel in 22LR
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