I have a possible problem with the stock on my H&R model 340 7x57mauser. I recently took the action and barrel off of the stock and I think I spotted a crack or split between the hole for the magazine well and the trigger. Is this something that might affect accuracy? If so will a crossbolt be able to fix this?

A true crossbolt will fix it, but it's overkill IMO. You can probably just spread the crack and get some epoxy into it and clamp it until it cures. Or one of Brownells brass repair pins will also work. After installation, you can countersink the ends of the pin below the surface and plug the countersinks with a piece of dowel and epoxy. You might see if some wood needs to be relieved at the rear of magazine well.

Thanks glen I will try the epoxy route.

I don't know, I think the crossbolt is a much classier fix and pretty easy. If you pick up the kit (B-Square, Brownells) it couldn't be any easier. Before the kit I did a few using shims to level the stock on a standard drill press, with a properly sized Forstner bit for the crossbolt head relief.

In the area you are talking about, you would have to do it the latter way as the jig is for the area behind the recoil lug. I usually do both now, the extra crossbolt is only a few bucks.

TG