One of the best trap shooters I know and I know a heap,shoots a Remmongton 3200. He likes it because the price and he has figured out how to work on it.There is no telling how many 100's he and his son have shot 12 or so State singles champions.
They are good guns jus find one that has not been shot to death.The average trap shooter probably shoots 3000 plus a year would be my guess so a 1965 gun might have had a lot of rounds ran through it as opposed to a newer gun.

monty