Changing muzzle thread.

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#1 Post by **breacher** » Fri Nov 01, 2019 11:44 am

Barrel threaded m17.

Can it be threaded again WITHOUT lopping off the threaded bit and losing barrel length ? Is M17 thread wide enough to allow it to take a 5/8x24 thread ?

#2 Post by **1066** » Fri Nov 01, 2019 12:07 pm

Oooh tight! Minor diameter for 17mmx 1.0 is 15.92mm.. Major diameter for 5/8-24 is 15.9mm - So, in theory, if everything was centred up in the first place it should just work.

#3 Post by **breacher** » Fri Nov 01, 2019 12:36 pm

I could get an adaptor run up I guess - m17 internal and 5/8 external.

#4 Post by **1066** » Fri Nov 01, 2019 12:46 pm

Yes, that would work - Extend the 5/8th thread for 3-4 inches and you could fit a movable "tuner" weight in there too.

My Sako Finnfire with tuner and moderator.

#5 Post by **Pippin89** » Fri Nov 01, 2019 1:05 pm

An Adaptor wouldn't work straight over the top. It would need to be an extension piece with the M17 hole in one end and the imperial male thread on the other end. Otherwise you have the possibility of having 0.02mm wall thickness in places!

#6 Post by **breacher** » Fri Nov 01, 2019 5:55 pm

Pippin89 wrote:An Adaptor wouldn't work straight over the top. It would need to be an extension piece with the M17 hole in one end and the imperial male thread on the other end. Otherwise you have the possibility of having 0.02mm wall thickness in places!

Thats pretty much what I have found - looks to be about 2 or 3" long with male one end and female other end.

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Changing muzzle thread.

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