Based on my experience competing at NMLRA territorial matches for almost 20 years, IMHO, the only shooters I see struggling with misbehaving rifles are the percussion shooters.
I am wondering about the quality of percussion caps now available at the
highest prices in history.There is a German that comes to Friendship for
the Fall Shoot and he uses a Gibbs/Pedersoili long range .451 to shoot
the 500 yard event.He uses the hot German RWS caps. On caplock guns,
my test is to put a dry patch in the muzzle and fire the cap and if it blows
the patch out then I know the vent is clear.His Gibbs failed this test but
went off every time he loaded and pulled the trigger. He told me that he
had misfires with American made caps but never had them with the RWS.
If you shoot caplocks as a regular thing,try the dry patch test and see if
the caps you are using have enough energy to blow it out of the muzzle.
If it won't,check the vent or channel to the main charge or buy better caps
if they're available.
Bob Roller