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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Muzzle brakes...
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<blockquote data-quote="Rich Coyle" data-source="post: 1123834" data-attributes="member: 70559"><p>I hope this answers your question. The photo will show it is a piece of aluminum 1 1/4" bar I grabbed for the job. It has four .750" slots .125" apart cut with a 1/4" endmill and angled about 15 degrees.</p><p></p><p>Another time I did a different test. The test was to fire with a four slot brake and then cut off one slot. The temp was about 45 degrees and it was raining. The slide was wet. With no brake on the unscoped Savage .257 Wea (about five pounds thirteen ounces) the three shots slid the rifle 72 inches. The aluminum brake with four slots .800" long and .312" wide produced a travel on the wet slide to <strong>12 9/16</strong>". I cut off the brake right in front of the third slot, leaving three slots, and fired the rifle three more times. The travel was <strong>14 13/16</strong>". The forth slot did help.</p><p></p><p>Just for fun I stuck the Mauley .22 with the Tasco 6-24X40 on there. With Federal red boxes ammo it moved <strong>5/32</strong>". </p><p></p><p></p><p><img src="http://i1232.photobucket.com/albums/ff364/RichCoyle/008_zpsb6a870b1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Rich Coyle, post: 1123834, member: 70559"] I hope this answers your question. The photo will show it is a piece of aluminum 1 1/4" bar I grabbed for the job. It has four .750" slots .125" apart cut with a 1/4" endmill and angled about 15 degrees. Another time I did a different test. The test was to fire with a four slot brake and then cut off one slot. The temp was about 45 degrees and it was raining. The slide was wet. With no brake on the unscoped Savage .257 Wea (about five pounds thirteen ounces) the three shots slid the rifle 72 inches. The aluminum brake with four slots .800” long and .312” wide produced a travel on the wet slide to [B]12 9/16[/B]”. I cut off the brake right in front of the third slot, leaving three slots, and fired the rifle three more times. The travel was [B]14 13/16[/B]”. The forth slot did help. Just for fun I stuck the Mauley .22 with the Tasco 6-24X40 on there. With Federal red boxes ammo it moved [B]5/32[/B]”. [IMG]http://i1232.photobucket.com/albums/ff364/RichCoyle/008_zpsb6a870b1.jpg[/IMG] [/QUOTE]
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