Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Equipment Discussions


Reply

Anyone have a KDF Brake?

 
LinkBack Thread Tools Display Modes
  #1  
Old 07-07-2003, 07:26 PM
Silver Member
 
Join Date: Mar 2002
Location: McNeal, AZ
Posts: 368
Anyone have a KDF Brake?

I recently had a new rifle built, complete with a KDF brake. It's the first rifle I have ever owned with a muzzle brake.

After reading Jake's thread the other day, and of the troubles he has had. I got to wondering about my own brake.

So I spun it off and looked at it. I didn't see anything out of the ordinary. Just a little powder fouling. So I dropped a 200 MK into it, and it got stuck. I tried a different one, same results. I tried some 220 MK, then some Nosler Partitions. All had the same result, none would pass thought the brake. I cleaned it with a brush and solvent, and tried it again, no luck. I measured the inside, the calipers read .3065". Maybe I measured it wrong, but I got the same reading at different angles, several times.

So I called the gunsmith, he said send it back and he would make it right.

No problem, I'm a firm believer that in spite of our best intentions, sometimes bad stuff happens. Not wanting to damage anyone's reputation, due to an honest mistake, I kept quiet and sent it off.

Then just 10 minutes ago, he called me back. Says there is nothing wrong with the brake, but he would be happy to bore it out to the next larger size. I was told I must have been trying to put the bullet in at an angle, and not straight.

Am I nuts? Shouldn't a bullet that measures .3080" pass though a hole that is supposed to be .3240?

Can someone who has one of these brakes, try dropping a bullet trough it and let me know if it fits?
__________________
If I can kill that coyote from here, Will you walk out to get him?
Reply With Quote
  #2  
Old 07-07-2003, 08:48 PM
Gold Member
 
Join Date: Mar 2002
Location: mi
Posts: 991
Re: Anyone have a KDF Brake?

I don't have a KDF brake but I just went and dropped a bullet threw my brake that S1 built for me and the bullet has plenty of room then I did the same with the brake that Dave Tooley did and had the same results.
Crow Mag
__________________
If you think something is not possible move out of the way so the ones that are doing it can
Reply With Quote
  #3  
Old 07-07-2003, 09:21 PM
Platinum Member
 
Join Date: May 2001
Location: Pennsylvania
Posts: 1,757
Re: Anyone have a KDF Brake?

Tim

I'll take my KDF off one of my 300 Weatherbys and see what happens.

Later
DC
__________________
Darryl Cassel
Reply With Quote
  #4  
Old 07-07-2003, 10:44 PM
 
Posts: n/a
Re: Anyone have a KDF Brake?

The funny thing is, you do not need to make the hole a super tight fit to make the brake more effective. A lot of guys try to make up for a ineffective brake design by making the exit hole as small as possible.

.030" over bullet diameter works just fine.

Even the experts that run flow benches for racing heads do not measure flow until the valve is at least .040" off the seat.

Anyone ever looked at cam shaft specs? Notice that the duration spec does not begin until a specific amount lift is achieved.

Anyone see a pattern developing?

The physical laws that govern supersonic gas flow are different than the laws of fluid dynamics that apply to your lawyers Hobie Cat.
Reply With Quote
  #5  
Old 07-08-2003, 05:51 AM
Platinum Member
 
Join Date: May 2001
Location: Pennsylvania
Posts: 1,757
Re: Anyone have a KDF Brake?

Tim

The bullet has plenty of room dropping through my KDF brakes.

Later
DC
__________________
Darryl Cassel
Reply With Quote
  #6  
Old 07-08-2003, 06:32 AM
Platinum Member
 
Join Date: May 2001
Location: Pennsylvania
Posts: 1,757
Re: Anyone have a KDF Brake?

S1

The "Holland Brake" instruction sheet calls for a hole to be .020" over bullet diameter.

Have you noticed any difference between bullet clearance of say .016" up to .030" in "felt recoil"??

Would say a 020" clearace give better dampening effects over a .030"??

Jusat wonderimg as I have not had one that was .030" over bullet diameter.

Later
DC
__________________
Darryl Cassel
Reply With Quote
  #7  
Old 07-08-2003, 07:06 AM
Silver Member
 
Join Date: Mar 2002
Location: McNeal, AZ
Posts: 368
Re: Anyone have a KDF Brake?

Thanks DC,

I don't know why he decided to tell me there was nothing wrong with the brake, But I sure couldn't get a bullet to pass all of the way though it.

Tim
__________________
If I can kill that coyote from here, Will you walk out to get him?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Anyone have a KDF Brake?
Thread Thread Starter Forum Replies Last Post
Which Brake? Tikkamike Rifles, Bullets, Barrels and Ballistics 27 06-22-2010 10:04 AM
What brake is this? Diezel Rifles, Bullets, Barrels and Ballistics 8 11-29-2007 05:12 AM
To brake or not to brake??? shasky Rifles, Bullets, Barrels and Ballistics 19 06-16-2006 07:25 PM
Where to find a brake like the Serbu shark brake? Kanab Rifles, Bullets, Barrels and Ballistics 1 03-23-2005 07:26 PM
Brake Rifles, Bullets, Barrels and Ballistics 0 04-17-2004 07:01 AM

Current Poll
Do you wear hearing protection while hunting?

All times are GMT -5. The time now is 10:40 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC