What magazines are you using? Some brands have an ejector that’s closer to the bbl than the standard 10/22.
Someone above questioned the extractor’s affect on ejection, which is true... if the extractor is not gripping the shell tight enough, your ejections aren’t going to be consistent.
Been awhile since I've been on this thread. I put back in the original charging handle and spring. Now it only jams up once every 100 to 150 rounds. The mags are old so that's the next to get replace.