A co worker of mine recently got a Remington Matchmaster model 513-T .22lr rifle, but with out a magazine.
It’s my understanding that this rifle is anywhere from 40-60 years old now, and I figured someone here could help.
Numerich Arms, AKA; Gun Parts Corp, West Hurley, New York. If they don’t have one, go to rimfirecentral.com The folks over there will definitly steer you in the right direction.