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Posted: 5/27/2011 11:01:58 AM EDT
| Can anyone here help me out. I bought a new scope for my model 99. My laser boresight is not long enough to reach into the barrel with the brake on. What is the proper way to remove the brake, without damaging it of course. |
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Honestly, I ran into the same problem and I decided to visually boresight it in. The half inch hole gave me plenty of vision and was on the paper at 50 yards and corrected just fine for 100.
I personally wouldn't screw around popping the break off just to sight it in IMO. |
| My M99 had the arrow brake originally. I bought the 6-fin brake kit from Barrett. The install wasn't too bad, but if you remove it, you will need to buy another shim kit from Barrett to put it back on indexed properly. You will also NEED a dead-blow hammer and a very, very good vise. |
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Remove the butt tube and bolt. Sand bag the rear up. Sight through the barrel at something downrange and twist the knobs on the scope to bore sight. You're done. Reassemble. Poor mans boresight.
Did it this way a lot when I worked at Barrett. Gets you on an 8x10 piece of paper at 100m every time. |
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Quoted:
Honestly, I ran into the same problem and I decided to visually boresight it in. The half inch hole gave me plenty of vision and was on the paper at 50 yards and corrected just fine for 100. I personally wouldn't screw around popping the break off just to sight it in IMO. THIS^^^ I've actually had better luck using the old eyeball method. I do it on anything from .223 up to .50bmg. As long as you can get a direct line of sight down the bore, you'll get on paper 1st shot every time. |
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Quoted:
I had no idea it was that involved. Not like the brake on an AR15, huh? I will use the "poor man's" method. Thank you, gentlemen!!! I went from this: 
$220 later (and a lot of work and elbow grease - lol), I had this: 
The old brake makes a nice paperweight and conversation piece. Those who are into guns usually know what it is right off the bat. Those who aren't into guns, usually just think it's some abstract art thing. |
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This is exactly what I did to laser-sight in my M82A1.... removal of the brake was simple, and outlined in the owner's manual. Loosen the two Torx screws, then give the brake a good whack with a dead-blow hammer to make it rotate counter-clockwise while staring down the muzzle. Once loose, just spin it off.
Prior to removing it, I used a little silver paint marker to make two reference dots on the underside. When putting it back on, I threaded it on and torqued it with my hands until the dots were re-aligned.... tightened down the two Torx screws again, and it was good to go. By the way.... sighting in the scope with the laser, I was within 1" of my POA @ 200 yards, first shot. Yeah... it was worth it 
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