"antsi enters the world of 10mm" is proceeding reasonably well, with just a few of the usual problems and questions.
As suggested, I ordered a Wilson two piece stainless guide rod, CP shock buff, and a 20# variable rate spring. I haven't been able to shoot this set-up yet but it all installs nicely. The wolff spring turns out to be two springs: one that is obviously the recoil spring and another much smaller one. It cannot be a concentric recoil spring like the stock set-up: it's way too small for that, about 2" long and about 3/16" diameter with many, many coils. Besides, wolff specifically says their replacement is NOT a dual spring set up. So my first question is, what is this extra oddball little spring? Where does it go? Will my gun melt if I go shooting without it?
I did get out to the range with a sample of my first attempt at 10mm reloads, a few of the UMC's, and a chrony. My reloads are 180gr win JHP's over 13.3gr AA#9. They average 1207 fps at 10' with an SD of 8 fps, and they seem quite accurate. The UMC's run about 1100 fps, and you can definitely feel the difference.
In this range trip, I was shooting with the stock recoil spring set up, not the wolff/CP/wilson arrangement. I had my first malfunctions with the gun, and they were very odd ones. The spent cases were extracting and ejecting normally, but then the slide would stop before going back into battery. It was almost as if the slide was locking back on an empty mag even though it wasn't empty. Pull back on the slide and let go, and then it would go right into battery like nothing was wrong. This happened three times out of maybe 25-30 shots fired. It did this with my reloads and with the UMC ammo.
Another oddball finding was that most of my spent cases have little linear dings about halfway along the side of the case. I didn't notice this the first time I shot the gun. The dings are perpendicular to the axis of the bullet, they are very light, and they are about 3-4mm long. Should I be worried about this?
Thanks again everyone for your experience. I am really liking this gun and I am definitely a new 10mm convert.
As suggested, I ordered a Wilson two piece stainless guide rod, CP shock buff, and a 20# variable rate spring. I haven't been able to shoot this set-up yet but it all installs nicely. The wolff spring turns out to be two springs: one that is obviously the recoil spring and another much smaller one. It cannot be a concentric recoil spring like the stock set-up: it's way too small for that, about 2" long and about 3/16" diameter with many, many coils. Besides, wolff specifically says their replacement is NOT a dual spring set up. So my first question is, what is this extra oddball little spring? Where does it go? Will my gun melt if I go shooting without it?
I did get out to the range with a sample of my first attempt at 10mm reloads, a few of the UMC's, and a chrony. My reloads are 180gr win JHP's over 13.3gr AA#9. They average 1207 fps at 10' with an SD of 8 fps, and they seem quite accurate. The UMC's run about 1100 fps, and you can definitely feel the difference.
In this range trip, I was shooting with the stock recoil spring set up, not the wolff/CP/wilson arrangement. I had my first malfunctions with the gun, and they were very odd ones. The spent cases were extracting and ejecting normally, but then the slide would stop before going back into battery. It was almost as if the slide was locking back on an empty mag even though it wasn't empty. Pull back on the slide and let go, and then it would go right into battery like nothing was wrong. This happened three times out of maybe 25-30 shots fired. It did this with my reloads and with the UMC ammo.
Another oddball finding was that most of my spent cases have little linear dings about halfway along the side of the case. I didn't notice this the first time I shot the gun. The dings are perpendicular to the axis of the bullet, they are very light, and they are about 3-4mm long. Should I be worried about this?
Thanks again everyone for your experience. I am really liking this gun and I am definitely a new 10mm convert.
