IBS muzzle brake rule question

[M.Stilley]

I am just starting out in long range, and I have to shoot what I have for now or don't shoot at all.

I've reviewed the IBS rules to ensure I complied prior to attending a match. Somebody called my rifle illegal because it had a clamp on muzzle brake instead of threaded on. Here is the rule:

"Muzzle Brake: A device connected to the muzzle of a rifle that redirects propellant gases to counter or control recoil."
The rest of the definition is about brakes directing gases rearward, beyond 90 degrees from the muzzle.

I don't see where it bans clamp-on brakes. Am I wrong?
Should I print out the page and bring it with me next time?

 

[JRS]

There should be a copy of the rules book at the range during a match.

Edit: perhaps a dictionary should also be available . Words have meaning, and the meaning doesn't change!

 

[Jason Boersma]

Does your brake direct gases to the side or backwards? If it directs gas backwards towards other shooters it's not legal, like a clamshell brake otherwise it should be legal.

 

[M.Stilley]

No, it directs gases 90 degrees to the side. The "vanes" of the brake are parallel to the crown, perpendicular to the bore
.

 

[JRS]

No different than a clamp on tuner vs a screw on tuner. Both are acceptable and comply with the rules. Personally, i've never understood why the words "legal" and "illegal" are used when a rule is questioned. There is nothing legal, nor illegal about rules.

 

[Dusty Stevens]

Comply or not. Semi-legal and somewhat illegal could be used

 

[BigJohn451]

IBS legal breaks have to have 360 degree ports all the way around, the one you show is only on the sides. IE see Harrels or the Vais breaks.

 

[dkhunt14]

IBS legal breaks have to have 360 degree ports all the way around, the one you show is only on the sides. IE see Harrels or the Vais breaks.

I Don't believe this is true. I believe the rule states can't vent to the rear. Matt

 

[stansrifles]

You are correct duck hunt no venting to the rear.
Stan

 

[dragman]

I could be completely wrong but I thought there was a statement about it could not be side discharge only??? I know Ridgway says it goes by Williamsport rules and they said they are enforcing that this year.

I no longer see that rule or maybe it never was one.

 

[M.Stilley]

The second half of the definition:
"Muzzle brakes may not be of the 'clamshell' design or any other design which intentionally exit gas directly rearward. Note: By the nature of gas dissipation, there will be some rearward movement of gases. The intent here is to prevent muzzle brakes designed to intentionally direct gases rearward beyond the 90 degree plane."

It seems really clear. Brakes with vanes or ports pointed rearward are not allowed. Brakes with vanes or ports no more than perpendicular to the bore axis are designed to vent gases no more than perpendicular to the bore axis, and meet the intent of this rule as clarified by the note.

I'm a new guy and don't want to piss off all the old timers, so I'm not sure I want to argue this point next time. But, the rules are the rules, and it looks like I'm inside of them.

If I'm wrong please tell me.

 

[M.Stilley]

Type of brake in question:


90 degrees from the crown view:


The vanes of the brake are purely perpendicular to the bore axis.

 

[Joe Salt]

Is this going to be like the rest rule, If you are not blasting the guy on either side of you and blowing stuff of his bench it should be legal. Some guns make a little more blast than others. But if its not sending gases back you should fine. That is what most people complain about.

Joe Salt

 

[DT]

Is this going to be like the rest rule, If you are not blasting the guy on either side of you and blowing stuff of his bench it should be legal. Some guns make a little more blast than others. But if its not sending gases back you should fine. That is what most people complain about.

Joe Salt

Not at all like the rest rule. Don't need half inch of sand on sides of the muzzle brake.

 

[Joe Salt]

DT I didn't make all the rules mine were easy to understand. Just shoot it at a match if it doesn't Tick anyone of you are good to go.

Joe Salt

 

[4xforfun]

DT I didn't make all the rules mine were easy to understand. Just shoot it at a match if it doesn't Tick anyone of you are good to go.

Joe Salt

Weather it ticks anyone off or not means nothing!! No rule against ticking someone off. if it is legal, it is legal!!

On the other hand, when I shot my breaked 300 WBY in a group shoot off, if weather would permit, I would let the guys next to me finish their record target before I shot mine.

Tod

 

[UltraBR30]

IBS legal breaks have to have 360 degree ports all the way around, the one you show is only on the sides. IE see Harrels or the Vais breaks.

Could you point out where this 360-degree rule is wrote.
Philip

 

[Joe Salt]

4xforfun If it blows the gasses out to the sides only you should be good.

Joe Salt

 

[Immike]

Weather it ticks anyone off or not means nothing!! No rule against ticking someone off. if it is legal, it is legal!!

On the other hand, when I shot my breaked 300 WBY in a group shoot off, if weather would permit, I would let the guys next to me finish their record target before I shot mine.

Tod

Your a gentleman sir.