proper 45 wad gun ejector

hi everyone! so now that most of season is over and not much action, i am starting to fool around with some of my older guns. i have a clark heavy barrel wad gun that jim clark sr, made back in 1972. shoots great but sometimes i will see occasional stove pipe with my load. (185 gr semi zero bullet over 4.9 231). very accurate at 50 yrds. i was told that because i have my dot sight slide mounted that is the reason. ejector seams to be angeled and short. my casian 9 has a long ejector and never seems to fail. should i change ejector to wilson long type with the peice that sticks out? any ideas? thanks! Vin C.

check extractor tension first ...

REGULATE YOUR EJECTION WITH YOU RECOIL SPRING RATE . I SUGGEST THE MIDDLE KIT. IT RUNS 11LB TO 15LB SPRINGS. JP
https://www.taylor-tactical-supply.com/1911-recoil-spring-calibration-kit-p/1911-recoil-spring-calibration.htm

thanks guys, i fine tuned extractor (rounded bottom) and polished, Works Great!! Thanks everyone.