Jump to content
UKV - The Place for Precision Rifle Enthusiasts
Sign in to follow this  
stephentri

Asu moderator bore size for 6.5

Recommended Posts

Hi was talking to Jackson rifles about asu jet z for my 6.5 ,they told me to go with the .30 cal even though the asu website states the .25 cal is for the 6.5 . Anyone using a .25 cal or is it Jackson's earing on the side of caution.

Share this post


Link to post
Share on other sites

Probably caution,,,,,,,think jet Z[.25] has a 7.6mm through hole that leaves around 17 thou or   .44mm  all round clearance. As a comparison my Wildcat 223  Evolution mod has a 6.5mm through hole that leaves around 16 thou all round clearance and my 6mm Evolution mod has a 7.5mm through hole leaving around 26 thou all round clearance. Best check mod for exact exit hole size and see if it provides acceptable clearance for your .264 bullet. I think 16 or 17 thou is ok as long as your threading is a good fit to mod and has been done to a high standard.

Share this post


Link to post
Share on other sites

Nothing to do with your calibre/mod choice, but I would trust Jacksons, I dont want to go into which is the best mod but  Jacksons customer service   is for me, had 3 t8s from them.

 

 

                                                              Hughes.s

Share this post


Link to post
Share on other sites

I am using a 30 cal SL7i-BL on my 6.5CM, and I am very happy with it.

Share this post


Link to post
Share on other sites

I'd give VarmLR a PM. He's had a few issues with his 6.5CM and his new moderator fitment.

Yet, I have the same rifle and moderator, from the same shop, yet it's only poor old VarmLR, (at this time) thats had problems. From memory, he was told that the new ELD 6.5CM bullet needs a .30 cal inside diameter moderator, due to the 'yaw' ??

Chaz

Share this post


Link to post
Share on other sites

Thanks for all the help , I spoke to Jackson rifles today told them it was a custom barrel work done by Steve Kershaw, they are happy to supply me with a .25 cal moderator for my 6.5 

Share this post


Link to post
Share on other sites

Glad your sorted,,,,,,think its generally correct that tightest working clearances are best for sound reduction,,,,,,,tried my 6mm Evo diffuser on my 223 yesterday,,,,huge increase in noise!!! more than I expected.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

RifleMags_200x100.jpg

Northallerton NSAC shooting.jpg

border_ballistics_UKV_ad.jpg

dolphin button4 (200x100).jpg

CASEPREP_FINAL_YELLOW_hi_res__200_.jpg

rovicom200.jpg

BHTargets200.jpg

Lumensmini.png

CALTON MOOR RANGE (2) (200x135).jpg

bradley1 200.jpg

NVstore200.jpg

Danny Trowsdale 200.png

safeshot 200.jpg

tacfire 200.jpg

blackrifle.png

jr_firearms_200.gif

valkyrie 200.jpg

tab 200.jpg

 

 



×

Important Information

By using this site, you agree to our Terms of Use and Privacy Policy