Erwan
45 Cal.
That is the big question : from 1:60 to 1:30, twist rate progressive or degressive ?I believe the Pedersoli '58s had gain twist rifling.
Never mind, forget it...... it's a joke...
Pedersoli don't do that : in fact, the Pedersoli are made by Uberti (Beretta now) finished by Pedersoli and like Uberti never did it I'm dubious about the existing Pedersoli with progressive twist rate...
Pietta did it one time on the Pietta Match (don't know if Pietta make it again)and the caliber was also different : .462"...
The gain in target shooting was peanuts (if somebody found this) in regard to the cost of those "revolving pistols" : the interest could be different with heavy loads...