moderator thread 1/2 x 28 UNEF

[gixer1]

As the title says, I am looking for a 1/2 x 28 UNEF (5mm spigot) T8 mod for my 243 weatherby vangaurd..

 

Can someone tell me what the "common" thread is on a 243?

 

Thanks

 

Garry.

[Dunkield]

1/2" UNF (20 tpi) is the most common thread, but there are few others.

[gixer1]

I thought that but what is the "e" for in UNEF????

[Dunkield]

See if I can type this before Bob.

 

E = Extra (fine)

 

Knock yourself out with information here

 

http://en.wikipedia.org/wiki/Unified_Thread_Standard

[bob300w]

That was quick, I'll give you that, as stuart says 1/2 x 20 UNF was the most common until large bore moderators came into fashion. Now the most common are the 1/2"UNF x 20 TPI and 5/8" UNF x 18TPI, although others are in use, i.e;

 

UNF 1/2, 9/16, 5/8

UNEF 1/2, 9/16, 5/8

Metric 14 x 1, 15 x 1, 17 x 1, 18 x 1

With spigot Metric 15 x 1, 17 x 1

[gixer1]

so my 1/2" x 28 is an oddball.......?

[CharlieT]

Unusual for a C/F

Sak make their r/f mod in in both threads though so it must be fairly common on rimfires/airguns. I believe it is the standard (UNEF) in the states.

[gixer1]

That would probably be correct as it seems to be a more popular rifle in the USA....

[Dunkield]

It wouldn't be the end of the world to get that thread lopped off and an 1/2" UNF thread put in it's place - if you have trouble getting the mod you want that is.

You can buy T8's in 1/2" UNEF by the way

[bob300w]

It wouldn't be the end of the world to get that thread lopped off and an 1/2" UNF thread put in it's place - if you have trouble getting the mod you want that is.

You can buy T8's in 1/2" UNEF by the way

As stuart says, and confirmed by the reflex site;

 

We also stock Reflex Suppressors to fit "legacy" rifle muzzles which are already threaded 1/2"x20 tpi UNF, 1/2"x28 tpi UNEF or 5/8"x18 tpi UNF without the locating spigot between thread and shoulder. In this case, we allow a larger suppressor exit aperture for some rifle calibres (6.5 mm, for instance would use 8.5 mm aperture). Other imperial threads including 9/16"x24 tpi and 3/4"x16 tpi UNEF are available to order or sometimes from stock.

 

'ave a butchers 'ere;

 

http://www.reflexsuppressors.co.uk/

[tulkyuk]

They will cut it in any thread you ask for

 

I had a rifle & T8 with a 5/8 UNEF thread on - Sako 75 .243 ( now belongs to Bazooka Joe)

[gixer1]

I wonder why no-one has come up with a muzzle crossover to change the thread from x to x.... my local RFD has a selection of S/H mods but none that fit my Weatherby...

 

And the cost of recutting the barrel isn't worth it as i can buy the new mod with the correct thread for around the same price as a S/H mod + recut....