rodwha
58 Cal.
I was just looking at the specs on Pietta models and noted they state the twist rate is 1:30”. My 2012 or 13 Sheriff’s model is 1:16”. Did they change it or not update info when they retooled?
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Pietta Remington NMA Twist
- Thread starter rodwha
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I think they make them to specification. I seen them with the twist called "gain twist" . I have an old Navy Arms-Replica Arms Pietta. I need to check it again, but I think the rifling is counter clockwise?
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The Shooters Model had gain twist but as far as I know all others are/were 1:30” twist.
My ASP NMA is 1-30 as was the 1858 Target I bought (and since sold).
The ROA and the 47 Walker are 2/3 that (would have to look but maybe 1-18). I found it odd that there was that much difference.
The ROA and the 47 Walker are 2/3 that (would have to look but maybe 1-18). I found it odd that there was that much difference.
rodwha
58 Cal.
Ruger used the .45 Colt barrels so the twist should be 1:16”.
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Just checked one of their sheriff's models. The barrel has skinny narrow lands (not like the older style rifling) and a visually faster twist. Date code says 2019.
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Ps,
The chambers on that sheriff's model are the usual .446"-.447" diameter.
Perhaps I'll get it's two cylinders done with the .452" diameter steps, depth selected for use with a particular round nose or semi-wadcutter mold.
Hey, just had a thought...
A gas check designed mold could have the gas check base diameter enlarged to provide an interference fit on the .446" part of the chamber and that would also provide a positive position stop so that each chamber's bullet loading was exactly the same.
And I just remembered, I think there's a #450229 bullet mold around here that is already pretty much of the right dimensions for such a project.
The chambers on that sheriff's model are the usual .446"-.447" diameter.
Perhaps I'll get it's two cylinders done with the .452" diameter steps, depth selected for use with a particular round nose or semi-wadcutter mold.
Hey, just had a thought...
A gas check designed mold could have the gas check base diameter enlarged to provide an interference fit on the .446" part of the chamber and that would also provide a positive position stop so that each chamber's bullet loading was exactly the same.
And I just remembered, I think there's a #450229 bullet mold around here that is already pretty much of the right dimensions for such a project.
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