Clocking a Compensator?

[chef.hunter.elliott]

Can someone explain what this is? Do you have to do it to all compensators? Thanks.

-Hunter

 

[ryanncass]

Basically it's putting the right size peel washer in-between the comp and barrel so that the ports line up in the direction you want them to face.

 

[mike cyrwus]

or milling the compensator so you dont have any ugly washers.

 

[Matt1911]

I'm not cool enough to have a milling machine yet so I have to use washers.

 

[chef.hunter.elliott]

so, an open shooter with an offset red dot would want to cant the comp?

 

[Chambers]

so, an open shooter with an offset red dot would want to cant the comp?

Depends.

This is one reason I dislike offset optics.

 

[chef.hunter.elliott]

for say a sjc comp, since it directs gas certain ways, it can really mess you up with certain shooting. but a more open comp might be more ideal for offset sights?

 

[technetium-99m]

Just put the darn thing level with your upper and shoot the wee out of it.

 

[jtischauser]

Here is the link to a deal I wrote on the Brian Enos forum about clocking the Rolling Thunder compensator. Fellow 3 gunner Larry Weeks from Brownell's asked me if they could use it on their product instructions.

http://www.brownells.com/.aspx/lid=14873/guntechdetail/Custom-Tuning-the-Rolling-Thunder-Compensator

 

[chef.hunter.elliott]

Thanks Jesse, that explains alot. might need some help with mine when i get it. i dont trust myself with power tools.

 

[threegungeezer]

Clocking refers to not squaring the comp to the upper to get the recoil pulse more to your grip. I tune my Rolling Thunder comps the same way Jesse does(and at Bennys direction) but others like the Titan or the Miculek comp I set the vertical ports at about 1 O'clock to give a slight amount of left to prevent movement of the gun to the right due to reduction in the weight that I am supporting with the offhand causing the rifle to move right. The rifle will actually push slightly toward the support hand. If done at the right angle it will prevent the dot from moving in the same way that the tuning of a Rolling Thunder comp does.

 

[Corey]

I just use the old course side of the sharping stone if you flip the washer over the contact points are different so putting the washer on one way may change how much metal needs to be taken off. I wanted to mill mine but there was some thing funny about the way my barrel was threaded that made the process not worth it. I had a three foot aluminum rod that fit nicely through the rolling thunder for install & removal

 

[Wall]

use a crush washer, one size fits all.

Your probably best just mounting it with the pop hole top dead center

 

[DoctorJJ]

I use a large diamond stone and mill down the end of the comp by hand until its clocked.

 

[jtischauser]

I know this junk is old but i didnt feel like making a new thread.

When I tune my Rolling thunder, is it best to have a set grip to go back to everytime. I find myself changing my support arm position as ive yet to find one i like. Sometimes its as far on the handgaurd as i can get, sometimes its by the magwell, sometimes its torqued over the top. will this affect the tuning?


Also where can I get the different size washers to get my RC mounted right?

Use a crush washer. You don't clock the Rolling Thunder. You put it square. Then you drill the smallest hole you can on the opposite side of your support hand. Shoot it and open that hole up as you see fit. Your hand position shouldn't matter a bunch.

 

[mike cyrwus]

k9, hand position has EVERYTHING to do with clocking a comp.
get your rifle position set first and then worry about clocking a comp.

 

[jtischauser]

k9, hand position has EVERYTHING to do with clocking a comp.
get your rifle position set first and then worry about clocking a comp.

You don't clock a thunder though you tune the size of the side & top holes.

Drill the side and top hole larger until the movement is minimized. The gun will go up and right. The further out you out your hand the less you should need to open the holes. Start with small holes and figure out where you like to hold the gun then open them up accordingly. Brownells has a detailed description on how to do this written by one of the top 3 gun shooters in the galaxy.

http://www.brownells.com/aspx/learn/learndetail.aspx?lid=14873

 

[jtischauser]

that's what I was looking for right there.

When I first started I geeked out trying to buy and try everything possible to reduce recoil and allow me to shoot faster. Then I shot for two years and got pretty good. Now it really doesn't matter what comp is on the end or amount of gas is going down the tube. You still have to shoot your when your sights tell you too to be fast and win.

 

[mike cyrwus]

You don't clock a thunder though you tune the size of the side & top holes.

Drill the side and top hole larger until the movement is minimized. The gun will go up and right. The further out you out your hand the less you should need to open the holes. Start with small holes and figure out where you like to hold the gun then open them up accordingly. Brownells has a detailed description on how to do this written by one of the top 3 gun shooters in the galaxy.

http://www.brownells.com/aspx/learn/learndetail.aspx?lid=14873

yes, but how and where you hold the rifle, particularly the forend, determines how big the side hole is and on which side you drill it.
The top holes I dont bother with

 

[mike cyrwus]

I understand the process of tuning the compensator. its spelled out pretty clearly from your write up.

Cyrwus spelled it out for me, I need to find a support position that I like and stick with it THEN worry about drilling my comp..

by support position, I hope you dont mean "taking support".

Modding a comp (whether clocking or drilling holes) should be used to correct undesirable movement due to recoil while shooting off-hand.