I have owned a few of these and unfortunately where I lived/live there is not a good local gunsmith. The 2 I took in for adjustment were done by apparent amateurs. I picked up a short action 1500 last weekend and decided to see if I could do it myself . Was it a piece of cake? Absolutely not, but after stoning the front of the trigger face and then refitting it 1/2 dozen times and trying it I have an almost perfect 2 3/4 lb trigger. Quite frankly I was ready to buy a Timney for it.
The trigger and sear locknut are some unusual size like maybe 6.5mm? I am not sure if this is the exact size needed. I will try to find a wrench for it on Monday at the local tool supplier and probably 2 new locknuts as well.Plier tight doesn't cut it. That is the almost perfect part
