D F Delozier
Inactive
So how many in here get their new shooting iron and immediately set about searching for the best load for your new revolver, powder amounts, primer brands, ball seating pressure, and the like. But few take the first basic step to even check, much less address the first most critical aspect of accuracy, ball to barrel fit. In the past Uberti has been a main offender of pushing grossly under sized cylinder chambers out the door, I have found it on my Pietta guns as well, but not to the extent of my Uberti guns.
It makes no sense to invest in load development only to send your ball rattling down the barrel due to under sized cylinder chambers, and expecting anything other than mediocre accuracy. Your ball should exit the cylinder at least at the bores groove diameter or a half to one thousands bigger.
My newest(2018) manufactured uberti NMA's chambers were all over the place size wise, and hardly any two were even the same. Went something like .4460,.4455,.4450,.4465,.4460,.4450, and a slugged .457 round ball came out the muzzle .4515 which means zero engagement of the rifling grooves, which equals crap for accuracy and tons of blow by as well as overall loss of power relative to powder used. Almost every 44 I own I've had to ream the cylinders to get a good fit, I use an adjustable hand reamer for this operation,they aren't that expensive, like 22.00 shipped this is another operation you can do your self, with a little mechanical inclination. Beware read your mic carefully, and don't do this when you're tired. My first attempt cost me a cylinder as it ended up with .461 chambers LOL now to find a 46cal NMA barrel and I could still use the cylinder.
Bottom line, if you want to realize your guns full potential, check and ream your cylinders accordingly. You don't have to settle for what ever crap the factory puts out the door.
It makes no sense to invest in load development only to send your ball rattling down the barrel due to under sized cylinder chambers, and expecting anything other than mediocre accuracy. Your ball should exit the cylinder at least at the bores groove diameter or a half to one thousands bigger.
My newest(2018) manufactured uberti NMA's chambers were all over the place size wise, and hardly any two were even the same. Went something like .4460,.4455,.4450,.4465,.4460,.4450, and a slugged .457 round ball came out the muzzle .4515 which means zero engagement of the rifling grooves, which equals crap for accuracy and tons of blow by as well as overall loss of power relative to powder used. Almost every 44 I own I've had to ream the cylinders to get a good fit, I use an adjustable hand reamer for this operation,they aren't that expensive, like 22.00 shipped this is another operation you can do your self, with a little mechanical inclination. Beware read your mic carefully, and don't do this when you're tired. My first attempt cost me a cylinder as it ended up with .461 chambers LOL now to find a 46cal NMA barrel and I could still use the cylinder.
Bottom line, if you want to realize your guns full potential, check and ream your cylinders accordingly. You don't have to settle for what ever crap the factory puts out the door.