I love my 22 but first of all 22lr ammo is almost impossible to find!!!
and second of all for some reason the CCI ammo that I did get a hold of isn't firing properly. Is this an operator error or an ammo error? or what? HELP! :help:
The Sig has a rebounding hammer which doesn't have a real hard snap to it. By rebounding hammer, what I mean is the hammer doesn't rest on the firing pin after pulling the trigger. It hits the firing pin, then rebounds back to a position away from the firing pin. This is something not very common in auto pistols, but it's just the way Sig does it. Because it rebounds away from the firing pin when you fire it, part of the spring power that drives the hammer is used up overcoming the spring pressure that returns the hammer to that "at rest" position just back from the firing pin. So that translates into less of an impact on the firing pin.
Rimfires require that you crush the rim to ignite the primer that is inside the rim. If you don't get a good whack, it won't go off. How hard of a whack depends on the round in question. Each brand of ammo will be a bit unique as to how hard of a whack it needs to ignite.
Now it's not uncommon for priming compound to not get under the whole circumference of the rim, so from time to time, you'll hit a dead spot and a round won't go off; this is normal. But this ought to only be 2 to maybe 4 rounds per 1,000. (this is why centerfire ammunition tends to be more reliable than rimfire)
If it's more than that, say 2-4 in a 250 or 500 round box, then your pistol may not like that particular brand of ammo, or it's not producing a hard enough hammer strike. The solution is to first try a couple of different brands of ammo. If that doesn't solve the problem, then I'd send the pistol back to Sig and give them the opportunity to make things right, and they will.
I hope my descriptions were helpful and not confusing. It's a bit technical, but you seemed like you wanted to learn the technical.
Btw - cool pistol you have there; love the pink.