Treacle Trackpad Posted January 5, 2012 Report Share Posted January 5, 2012 The rifle I am buying isn't screw cut and I will wanting to fit a moderator, so.... What would be the best thread suited to this barrel and would a cal specific mod make much difference over a .25 for example? Thanks Link to comment Share on other sites More sharing options...
6mmBR Posted January 5, 2012 Report Share Posted January 5, 2012 To recomend a thread you need to give the outside diameter of the barrel. Also what caliber is it? Cheers Dave Link to comment Share on other sites More sharing options...
Treacle Trackpad Posted January 5, 2012 Author Report Share Posted January 5, 2012 To recomend a thread you need to give the outside diameter of the barrel. Also what caliber is it? Cheers Dave Clue to the cal is in the thread name "Recommended thread size and mod? CZ 527 Varmint .17 Rem" Sorry not sure of the measurements as I don't have it yet, I thought one of the learned chaps on here might've cut one before and know. Suppose I'll have to hang on for a bit. Cheers Link to comment Share on other sites More sharing options...
Gunsgobang88 Posted January 5, 2012 Report Share Posted January 5, 2012 Hi Steve, The most common threads used on varmint weight barrels are 5/8"x 24 UNEF or 14x1mm. This is obviously dependant on the muzzle being of a sufficient diameter to leave enough material for a shoulder, Best regards Alan Link to comment Share on other sites More sharing options...
Treacle Trackpad Posted January 5, 2012 Author Report Share Posted January 5, 2012 Hi Steve, The most common threads used on varmint weight barrels are 5/8"x 24 UNEF or 14x1mm. This is obviously dependant on the muzzle being of a sufficient diameter to leave enough material for a shoulder, Best regards Alan Thanks alan. Link to comment Share on other sites More sharing options...
6mmBR Posted January 5, 2012 Report Share Posted January 5, 2012 Clue to the cal is in the thread name "Recommended thread size and mod? CZ 527 Varmint .17 Rem" Sorry not sure of the measurements as I don't have it yet, I thought one of the learned chaps on here might've cut one before and know. Suppose I'll have to hang on for a bit. Cheers Sorry don't see full headers when reading posts on my I phone. As said still need outside diameter of barrel to asses for thread size. I always try to have the largest thread diameter as possible that the barrel will allow. Dave Link to comment Share on other sites More sharing options...
baldie Posted January 5, 2012 Report Share Posted January 5, 2012 Hi Steve, The most common threads used on varmint weight barrels are 5/8"x 24 UNEF or 14x1mm. This is obviously dependant on the muzzle being of a sufficient diameter to leave enough material for a shoulder, Best regards Alan I find your thoughts unusual Alan there. I would say 5/8 x 24 UNEF is very rare in the UK. I cannot honestly remember the last one i saw. Its an American thread size most favoured when fitting brakes. By far the most common size , imperial wise in the UK has to be 5/8 x 18 UNF. Its what all Remingtons are threaded in the UK with a varmint weight barrel. Regarding the CZ varmint TT, if i remember rightly, i think a 5/8 thread can just about be squeezed on leaving enough shoulder. It would be better in 14mm x 1 possibly. Link to comment Share on other sites More sharing options...
Gunsgobang88 Posted January 5, 2012 Report Share Posted January 5, 2012 Hi Dave, It just seems that people prefer the finer thread, I do about 2-3 UNEF for every 1 UNF. This applies for both 1/2" and 5/8" threads. Most US made muzzle brakes are UNEF, some shooters like to be able to swap between brake and moderator depending on the type and venue of their shooting, Best regards Alan Link to comment Share on other sites More sharing options...
baldie Posted January 5, 2012 Report Share Posted January 5, 2012 I think you have hit the nail on the head there Alan. I tend to cut the 5/8 x 18 thread for exactly the same reason, as i buy the Third eye brakes in , cut in this thread to enable a switch between a brake and mod.Regional gunsmith differences and ideas. Never thought i, say it, but i,m cutting more and more metric threads through choice these days. I have a box full of genuine Vais brakes though, in some real weird threads....even up to 32 pitch ones.... Link to comment Share on other sites More sharing options...
22/250 foxer Posted January 5, 2012 Report Share Posted January 5, 2012 m14x1 here steve Link to comment Share on other sites More sharing options...
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