Agree with above. I use Winchester 209 Shotgun Shell Primers. Any 209 Shotgun Shell Primer should work. You will have to swipe after 10 or so shots because the fouling in the barrel will get to the point where it will be very hard to seat your sabot. I shot 13 consecutive shots without swabbing before it was too darn tight. That 13th shot also resulted in a hangfire. So I cleaned out the flashole. You will also have to clear out the flash hole in the breech plug every 10 or so shots as well because the of the fouling that the 209 primer leaves. So I personaly have a ten shot rule. It likes heavier bullets I do believe. I was shooting 250gr. bullets but after a recomendation, I tried a 300gr. bullet with great results. It bucks the wind better and just seemed to have a tighter grouping. Tack driver @ 50yds and a 1"-2" MOA @ 100yds. This is with a peep sight. At 150yds it opens up a bit but no more than a 2" to a 4" MOA and thats probly me and not the gun or the load. If I scoped it I am sure everything would get better but I can not hunt with a scoped ML during ML season here in CA. I use 110gr. of BH209. It is expencive and I went through a few containers of it before I finally found out what my Omega likes. I dont shoot it at the range anymore because of the price. I use T7 FFg. I have tried many combos with my Omega but can not duplicate the results of my 300gr. bullet and 110gr. BH209 combo. For hunting purposes, I think its a great sub. You will be able to load a finishing or second shot from a speed loader without any issues. Good luck and most of all, have fun.