I'd heard of it before... you know, every time you chamber a round the bullet can get pressed back into the case a little bit each time - therefore, one should always rotate/shoot their carry ammo every now and then and not chamber the same round every time. Right?
** Disclaimer: I realize that loading live rounds while not at a shooting range is potentialy dangerous... and that manually cycling live rounds may not be the best idea either. Safety precautions where taken at all times. ***
So, tonight after I cleaned my gun (1911) and installed a new 18.5# recoil spring, I loaded it up and manually ejected a couple rounds to see how it was going to work. Upon inspecting the ejected rounds I discovered that some had been set back something terrible! Compared to a new round, there was as much of a difference as .050 inches - and this was all on new factory ammo! I thought that seemed like a lot, so I tried it with some of my hand loads. The set back on my own was usually less than .010.
I switched back to the old recoil spring to see if that made any difference. Sure enough, the setback wasn't nearly as bad, but still around .020.
Then I tried hand cycling both the factory ammo and my own in my full-size USP. Setback in the USP was more like .002 for each type of ammo.
What the heck is going on...?
a) bad factory ammo
- or -
b) too heavy recoil spring
Ideas?
** Disclaimer: I realize that loading live rounds while not at a shooting range is potentialy dangerous... and that manually cycling live rounds may not be the best idea either. Safety precautions where taken at all times. ***
So, tonight after I cleaned my gun (1911) and installed a new 18.5# recoil spring, I loaded it up and manually ejected a couple rounds to see how it was going to work. Upon inspecting the ejected rounds I discovered that some had been set back something terrible! Compared to a new round, there was as much of a difference as .050 inches - and this was all on new factory ammo! I thought that seemed like a lot, so I tried it with some of my hand loads. The set back on my own was usually less than .010.
I switched back to the old recoil spring to see if that made any difference. Sure enough, the setback wasn't nearly as bad, but still around .020.
Then I tried hand cycling both the factory ammo and my own in my full-size USP. Setback in the USP was more like .002 for each type of ammo.
What the heck is going on...?
a) bad factory ammo
- or -
b) too heavy recoil spring
Ideas?