Hello,
1911 style pistol, built by me from an RIA.
Ammo is 185gn LSWC, BH of 18, loaded over a charge of 6.3gn W231 using Rem LPP. I am satisfied this load is a bit warm, but safe. Alternate load, however, is the same, using 5.6gn of W231.
COL is 1.250-1.256. The bullet is a long nose profile:
Out of 100 rounds, I have, on average, two failures to feed all the way. The rear of the case seems to hang on the breech face. Slapping the bottom of the mag will usually allow it to close, as will slapping the back of the slide with the heel of my weak hand.
This is my carry weapon, so everything's been stoned, deburred, whatnot, and the chamber has been lightly polished.
Feeding problems only happen within the last 25 rounds, when the pistol starts getting dirty. I have the recoil spring at 18.5# for carry and don't want to go heavier.
Extractor tension is about perfect. In fact, the case rim isn't even at the extractor when it hangs.
The problem is most prevalent with surplus magazines, but also showed itself with a Wilson (though this happened before I polished the chamber...)
It's almost as if the nose is catching on something in there when it's feeding, but the chamber is so smooth, there's nothing left for it to catch on. (I used 800 grit wet paper with a slight crosshatch to keep the expanded brass from sticking).
I adjust the rounds out to 1.270, problem totally disappears. That leads to unburned powder though, and I don't like that.
I don't recall if it did this with AA#7, though I seem to recall a couple malfs of this nature.
I've not tried any other brand of powder yet, due to lack of availability. Got the gunshop's last pound of 231 in fact.
Any thoughts here? The LSWC is not used for serious purposes, but could cost me an IDPA match if they hold them this summer. Past couple summers I placed 5th, then 3rd, and I want first on the local circuit.
FMJ and LRN feed perfectly all the time, any length, any magazine.
The only thing I've noticed at all is that some of the brass is a bit rough in the rear from multiple reloadings. I wouldn't think this would affect much though, as long as the breech face is smooth. Seems to stick more in the chamber, anyway, like the nose hits something and stops.
Can't reproduce the problem hand feeding.
Thoughts?
Thanks,
Josh <><
1911 style pistol, built by me from an RIA.
Ammo is 185gn LSWC, BH of 18, loaded over a charge of 6.3gn W231 using Rem LPP. I am satisfied this load is a bit warm, but safe. Alternate load, however, is the same, using 5.6gn of W231.
COL is 1.250-1.256. The bullet is a long nose profile:
Out of 100 rounds, I have, on average, two failures to feed all the way. The rear of the case seems to hang on the breech face. Slapping the bottom of the mag will usually allow it to close, as will slapping the back of the slide with the heel of my weak hand.
This is my carry weapon, so everything's been stoned, deburred, whatnot, and the chamber has been lightly polished.
Feeding problems only happen within the last 25 rounds, when the pistol starts getting dirty. I have the recoil spring at 18.5# for carry and don't want to go heavier.
Extractor tension is about perfect. In fact, the case rim isn't even at the extractor when it hangs.
The problem is most prevalent with surplus magazines, but also showed itself with a Wilson (though this happened before I polished the chamber...)
It's almost as if the nose is catching on something in there when it's feeding, but the chamber is so smooth, there's nothing left for it to catch on. (I used 800 grit wet paper with a slight crosshatch to keep the expanded brass from sticking).
I adjust the rounds out to 1.270, problem totally disappears. That leads to unburned powder though, and I don't like that.
I don't recall if it did this with AA#7, though I seem to recall a couple malfs of this nature.
I've not tried any other brand of powder yet, due to lack of availability. Got the gunshop's last pound of 231 in fact.
Any thoughts here? The LSWC is not used for serious purposes, but could cost me an IDPA match if they hold them this summer. Past couple summers I placed 5th, then 3rd, and I want first on the local circuit.
FMJ and LRN feed perfectly all the time, any length, any magazine.
The only thing I've noticed at all is that some of the brass is a bit rough in the rear from multiple reloadings. I wouldn't think this would affect much though, as long as the breech face is smooth. Seems to stick more in the chamber, anyway, like the nose hits something and stops.
Can't reproduce the problem hand feeding.
Thoughts?
Thanks,
Josh <><
X3
