I put some more rounds through my full size Polymer 80 today. As posted earlier in this thread, I had been having some pretty erratic ejection and a few failures to eject with mine, so today I tried it out with a different slide - a Lonewolf 17L length slide.
The ejection is a little better now, but it still has a tendency to throw empties back at me. I had no failures to eject this time, but a new issue has cropped up. Out of the first 100 rounds I put through it today, I had six failures to feed - all were the last round in the magazine, and they all occurred with different mags. The rounds would nose-dive and hit the feedramp. All of the malfunctions happened with Glock factory 10 round mags.
I had no malfunctions in the first 100 rounds with the 10 round ETS mags I had with me, so for the next 100 rounds I used the ETS mags. exclusively, and had no more malfunctions using these mags - all 100 rounds fed and functioned perfectly.
This makes a total of about 500 rounds through this frame at this time.
I'm going to experiment with this a little more and try some different loads through the Glock mags (I was using a jacketed hollow-point bullet - maybe some FMJ roundnose will help with the feeding issue). If that doesn't help I will just stick with the ETS mags, because they seem to be working fine with this pistol.
I'm a bit happier with this frame now that it seems to be working much better. Next I may swap out the 336 ejector that is in it now with the 30274 ejector and see if that might help me from getting beaned in the head with the brass.
IMG_0349 by
John, on Flickr