Pietta rifling

[Jappo]

I just noticed this. Is the rifling going in different directions on these 1858s ?
The NA-RA is a Pietta Navy Arms-Replica Arms 1976.
The target model is a Pietta 2009.
I don't have another Pietta to compare the rifling besides a 36 caliber. Don't know if they would use the same rifling as the 44.

 

[AlexB]

That's something isn't it?

 

[Jappo]

That's something isn't it?

Yep, there was a post of someone looking for a competition revolver and the rifling twist was mentioned. Got me curious. I have this target model and the Navy Arms was a "gift?" to an Ohio National Guard Match competition winner. Not sure what pistol they used. Im thinking a 22 maybe.
Anyway this is what I found.

 

[Jappo]

Here's some pictures of the Navy Arms-Replica Arms

 

[stubshaft]

Supposedly there is also a change in the twist rate with the newer guns being faster.

 

[AwwNaww]

I just now reread the "Loading and Managment of Cap and Ball etc" chapter in Keiths "Sixguns" and he makes the statement that "for the most part" they were all rifled with gain twist rifling.

Is this true? Are any replicas rifled with gain twist?

 

[45D]

Supposedly there is also a change in the twist rate with the newer guns being faster.

Nope, they're slow. Uberti changed to a 1:18" across the board in early 2000's. Another reason why my revolvers are Uberti's . . .

Mike

 

[M. De Land]

I just now reread the "Loading and Managment of Cap and Ball etc" chapter in Keiths "Sixguns" and he makes the statement that "for the most part" they were all rifled with gain twist rifling.

Is this true? Are any replicas rifled with gain twist?

I don't know of any production guns that are gain twist now days. The reason is gain twist can only be cut by the single point hook or scrape method, one groove at a time which is slow and tedious where as even twist rifling can be broach cut all grooves at once .

 

[wiscoaster]

I just now reread the "Loading and Managment of Cap and Ball etc" chapter in Keiths "Sixguns" and he makes the statement that "for the most part" they were all rifled with gain twist rifling.

Is this true? Are any replicas rifled with gain twist?

Would it even be possible to tell over that short of a distance?

 

[Bad Karma]

I don't know of any production guns that are gain twist now days. The reason is gain twist can only be cut by the single point hook or scrape method, one groove at a time which is slow and tedious where as even twist rifling can be broach cut all grooves at once .

The last gain twist replicas were the Pietta Shooters Model, the Pedersoli, and the Hege-Uberti.

 

[AwwNaww]

THANKS! I couldn't figure that any were made recently with Gain twist.....but ya never know

 

[M. De Land]

Would it even be possible to tell over that short of a distance?

There has never been any definitive proof of accuracy advantage from gain twist rifling in pistol or rifle since it's invention a couple centuries ago. The only advantage I have been able to understand about it's use is how it effects barrel harmonics by increasing projectile resistance and damping barrel whip. It was discovered that lapping some choke in a barrel with even twist accomplished the same effect.

 

[wiscoaster]

There has never been any definitive proof of accuracy advantage from gain twist rifling in pistol or rifle since it's invention a couple centuries ago. .....

Ya, ask me how I know .... I've got Carcanos!!