Length of pull issues
Okay, I've tried searching for "length of pull" in various forums and it just doesn't work - so I'm going to ask this question. I'm almost certain that it's an "asked and answered" situation, but I can't find it. So, even if it's a link to a previous thread, that's fine - I just need some help here.
I have two shotguns that I bought used - so they are the way they are. The only real issue I have with them is that the stocks are too long - I can't square up with my target, which means that I get a lot of "slap" from the recoil because my body is bladed.
I know the stocks can be modified, but I have no idea who or what I should be looking for. I've been told that this isn't necessarily "gunsmith" work, but I don't know where else to look. Can anybody help me out here?
Many thanks in advance!