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Bulseyetom
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#5 Roller Conversion question
Jun 23rd, 2021 at 2:26pm
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I have a somewhat custom #5 Rolling Block that somewhere in the past was rebuilt into a 250 Savage.  It sports a heavy varmint weight barrel in 14 twist and has a throat set up for 250 grain bullets!  A normal 87 grain 25 caliber bullet falls out of the case long before the bullet engages the rifling.  This rifle as it stands is surplus to my needs and I am considering reboring it to a 50-70 Govt.  Is this an easy project or will the larger case be a problem for the extractor or even the size of the #5 action.  What old buffalo cartridge can be used in a #5?  I already have several 40 caliber rifles so really have my heart set on a 50-70 if it does not entail a bunch of machine work.  I don't want to go with a 45-70 as I want something different.  Thanks.  Tom
  
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JerryH
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Re: #5 Roller Conversion question
Reply #1 - Jun 23rd, 2021 at 3:14pm
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How about a 44-77 Sharps?

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George Babits
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Re: #5 Roller Conversion question
Reply #2 - Jun 23rd, 2021 at 4:02pm
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There's plenty of room with the Remington to go out to 50-70.   Remington made a lot of 50-70s in early military actions and in the #1 action as well.  It would probably depend some on the taper of the barrel and if there will be enough metal at the muzzle.   A friend had a 43 Eqyption rebored to 50-70 some years back.

A 250 grain bullet in 25 caliber!!!   That sounds pretty extreme!

George
  
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Bulseyetom
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Re: #5 Roller Conversion question
Reply #3 - Jun 23rd, 2021 at 4:23pm
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George, I kid you not that the freebore is as long as a bullet!  I am surprised at how well it shoots with a short bullet for the 1:14 twist.  It seems like the consensus is that a #1 is no problem as they came from the factory chambered in 50-70, but is the difference in a #5 enough to make it harder to accomplish converting?  Tom
  
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singleshotsam
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Re: #5 Roller Conversion question
Reply #4 - Jun 23rd, 2021 at 5:53pm
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Tom,
No issues with the #5 action going to 50-70. Usually need to clear the hammer nose slightly for ease of loading a cartridge. I recently completed one for a client on a #5 action and have another in the works at this time. 
SSS
  
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Re: #5 Roller Conversion question
Reply #5 - Jun 23rd, 2021 at 6:10pm
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Thanks Curt!  Always value your input.  Tom
  
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George Babits
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Re: #5 Roller Conversion question
Reply #6 - Jun 23rd, 2021 at 6:42pm
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And - - - the 50-70 is a really fun cartridge to shoot.   I have an 1870  Springfield Remington Navy rifle that it great, as well as several other originals chambered for the 50-70.   I use the standard govenrment bullet (Lyman 515141) in most of them, but have been experimenting with the lighter Lyman 515139 bullet (350 grains) in a couple of carbines.   I'm not to interested in fast twists and 700 grain bullets, just keeping things as they were originally intended to be.   Why spoil the fun by beating your shoulder to a pulp!!

George
  
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oneatatime
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Re: #5 Roller Conversion question
Reply #7 - Jun 23rd, 2021 at 7:10pm
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And my #5 rebarreled to 50-70. Go for it!
  
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marlinguy
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Re: #5 Roller Conversion question
Reply #8 - Jun 23rd, 2021 at 8:25pm
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I'll 2nd Jerry's suggestion of the .44-77 SBN. I think it's one of the best old hyphenated cartridges ever designed. Very versatile, and shoot's bullets from under 300 grs. to over 500 grs. equally well, depending on the distance you want to shoot it.
  

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