I have used the Federal champion blue box/red box i bout those about 6 years ago. they were 12.99 each for 1000 rounds all togeather... they work flawless.No jams, no ftf, fte. I have also used Old fed 550 pack 36gr from about 10 years, those were good to another 1000. I have used the "New" Federal lighting 40gr again, no ftf, fte's..I finaly broke down and bought a 555 box of Winchester36 copper washed and had 3 ftf's, 1 fte with a double feed.. idk if it me, but i noticed the winchersters are alittle cleaner than the federals..
i also used some 1994 made russian "junior" ammo... doesnt work at all. Ive had so many ftf, fte i didnt even bother to count....my 22/45 will shoot them all day long with minamal ftf's, fte's. in all i have alittle over 6000 rounds threw my rifle. Springs are still stiff, and mags still work great. no mag problems.