gareth Posted November 18, 2008 Report Share Posted November 18, 2008 Hi all. What size thread would you suggest on a Rem varmint profile barrel to allow the fitting of a sound moderator (T8 or PES). Am I right in thinking 5/8 is more suitable for this diameter barrel? Thanks in advance. Link to comment Share on other sites More sharing options...
eldon Posted November 18, 2008 Report Share Posted November 18, 2008 Yes I have a 5/8 ths thread on mine and its fine on this profile. Link to comment Share on other sites More sharing options...
craigyboy Posted November 18, 2008 Report Share Posted November 18, 2008 I have a 5/8 on my rem700 its big enough but a bit bigger wouldnt hurt, its puny enough looking I have another rifle with a 17x1 thread and it is much more meaty looking, to use a pes mod 17x1 is no hassle just a normal thread but beware if you go with 17x1 and plan to use a reflex mod you will need the threading done specifically for the reflex mod as there bigger metric threaded models require a extra spigot turned on to the barrel, its basically just a flat shank 20mm long behind the threading. Link to comment Share on other sites More sharing options...
Ronin Posted November 19, 2008 Report Share Posted November 19, 2008 Its preferable and more aesthetic to thred the barrel with as large a thread as the diameter will allow. Sendero style profiles are about .850" at the muzzle, which I recall will allow up to an M18x1mm, 18x1.5mm, 17x1mm, 5/8ths UNF, 5/8ths UNEF etc etc etc. Link to comment Share on other sites More sharing options...
6mmBR Posted November 19, 2008 Report Share Posted November 19, 2008 On my Remy varmint profile barrel she is cut M 17x1 and that leaves plenty of meat at the muzzle. Dave Link to comment Share on other sites More sharing options...
baldie Posted November 19, 2008 Report Share Posted November 19, 2008 Its all well and good having 17mm threads cut on a gun, especially 17x1. You ding the thread and try and get a die to clean it up. It doesn,t exist. It would have to go back in the lathe. People can, and do, ding fine metric threads. A 5/8 x 18 is an industry standard thread, and all the mod manufacturers use it . Dies for cleaning up can be had off the shelf. Link to comment Share on other sites More sharing options...
gareth Posted November 19, 2008 Author Report Share Posted November 19, 2008 Thanks for all the replies guys, looks like I opened up a bit of a can of worms there! I'm no engineer and never realised so many different thread sizes were available. Looks like 5/8ths seems to be the sensible option going by mod availability etc. Thanks again, Gareth. Link to comment Share on other sites More sharing options...
eldon Posted November 20, 2008 Report Share Posted November 20, 2008 For Baldies reasons thats why I went with 5/8 ths myself. On another rifle I changed it from 14 x 1 to 1/2 unf because its more universal and I could fit the mod to other rifles including factory screwcut stuff. I know we are, or should be, metric but UNF will be here for a long time. Gareth wise move stick to 5/8 ths UNF. Link to comment Share on other sites More sharing options...
22/250 foxer Posted November 20, 2008 Report Share Posted November 20, 2008 got m18x1 sako thread on my hb 22/250. nice and meaty Link to comment Share on other sites More sharing options...
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