If you're shooting loose powder, I like the Remington Kleenbore Primers best. If shooting pellets then I like the Winchester W209 the best. Shockey Gold like APP will be hard to light in damp conditions, so keep your powder dry. Be sure and swab that oil out of the barrel first, before loading. Use an alcohol patch and then some dry patches. Then shoot off a couple primers and load it up. Good luck. Keep us posted how the SG works for you.