I picked up my 310NG about two weeks ago and have had some eventful sessions at the range that I thought I would share.

Before even firing the gun, I removed the IL flag and added an extended firing pin. During this week I dry fired the gun several hundered times each night. I plan on keeping this as a night stand gun so I plan on keeping it stoked with 40s with 10mm in back up moon clips.

First time at the range was a good break-in, shooting 90 rounds of 40 caliber FMJ. I experienced a few jackets shaving on the 10mm ledge but no leading in the barrel. I also experienced a few times when the cylinder would not rotate. I attributed this to the shavings getting caught in the cylinder gap (it wasn't). Accuracy was not great and I discovered that both screws in the rear sight had become loose. Recoil was not bad but the grips did not dampen the recoil and my hand was sore after 90 rounds.

Second time at the range was when the fun started. I put another 100 rounds down range and experienced a locked cylinder with every moonclip. Turns out that the extended firing pin was sticking in the fired primer and not retracting properly. Accuracy was much improved with the addition of thread locker to the screws. After this session, I took the gun home and put the factory firing pin back in.

Third time at the range I put 200 rounds down range and sent 100 rounds down range with good success. Then the main spring screw backed out and the light strikes started and I had every other round failing to get a good primer strike. I also had not put enough thread lock on my rear sight screws so they started to come loose. So the last 100 rounds consisted of taking off the grips after every few clips and tightening the main spring screw and then tightening the sight screws. I experimented with the main sping and with even 1 half turn of the screw, I would experience light strikes. Fully tightened, I get 100 percent reliability.

Last night I cleaned the gun and then added liberal amounts of thread lock to each screw only to find at the end that the ejector rod had come loose. I usually test the ejector by hand tightening the rod and this was the first time it had come loose.

Regarding the extended firing pins, I have them in my 357 and 45 N frames and had never experienced the pin getting caught in the primer. I suppose the solution to light stikes with factory pin is to either make sure the main spring screw is fully tightened or futz with the extended firing pin until the main spring is backed out for lighter strikes.

My solution? I'll stick with the factory pin for the 310 and thread lock everything I can . . .

-R