I'm about to rebarrel a valmet rifle to a heavy barrel in the same caliber. Is there anything I should watch out for or should know? Or is it pretty straight forwards after i remove the gas tube. I have the replacement barrel and it looks like it may be pinned as well as threaded into the receiver?
Rebarrling a valmet
- Thread starter Evanguy
- Start date
so when i look as assembly/parts drawings for the m88 (all i can find) they seem to show a screw that does down into the top of the barrel, that doesn't exist on this rifle. although I don't think this is an m88 so that may make sense. but the barrel has a groove interrupting the threads so that makes me feel like there may be a pin or something going into that groove but I don't see anything on the rifle indicating so
before to try to turn hat barrel I want to try and figure this out.
here are a few pics.
before to try to turn hat barrel I want to try and figure this out.
here are a few pics.
If the barrel doesn't have a gas port, then you're good. You adjust the headspace by threading the barrel in or out - so you either have to remove material from the shoulder (where the barrel goes against the receiver) or add a shim there. Once the headspace is set, you drill the gas port.
Another issue you may run into (also related to headspace) is the position of the extractor clearance cut on the barrel, but there is a bit more leeway there compared to gas port.
b-wingpilot
CGN Regular
- Location
- Sherwood Park
I'm pretty sure that groove in the barrel is for the stamped receiver M78s / M76s, where there is a rivet that has to be removed before you unscrew the barrel. Let us know how it goes!
