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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Browning A Bolt Magazine to Short
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<blockquote data-quote="Doug Brownlee" data-source="post: 968516" data-attributes="member: 37106"><p>My nephew asked me to work up some loads for his Browning .325WSM A Bolt. He provided a box of ammo that he was using. First thing I did was use my OAL gauge and came up with 2.913 to the lands I then measured the factory ammo and found that it was set back.086 off the lands. </p><p></p><p>I loaded up 3 rounds for -.010, -.020, -.030 all the way out to the factory loads and went to the range.</p><p></p><p>The best 100yd 3 shot group was at .010 off the lands the worst were the factory loads 3.75. </p><p></p><p>Now it gets interesting: the inside measurement of the mag is 2.898 and to achieve proper feeding of 3 rounds an additional .025 clearance was required this takes us back to a COAL of 2.873. </p><p></p><p>Starting with the new COAL of 2.873 the best 3 shot group was 1.432 at 100yds. I can not understand why Browning produces a rifle with a short Mag. Has anyone else had this problem</p></blockquote><p></p>
[QUOTE="Doug Brownlee, post: 968516, member: 37106"] My nephew asked me to work up some loads for his Browning .325WSM A Bolt. He provided a box of ammo that he was using. First thing I did was use my OAL gauge and came up with 2.913 to the lands I then measured the factory ammo and found that it was set back.086 off the lands. I loaded up 3 rounds for -.010, -.020, -.030 all the way out to the factory loads and went to the range. The best 100yd 3 shot group was at .010 off the lands the worst were the factory loads 3.75. Now it gets interesting: the inside measurement of the mag is 2.898 and to achieve proper feeding of 3 rounds an additional .025 clearance was required this takes us back to a COAL of 2.873. Starting with the new COAL of 2.873 the best 3 shot group was 1.432 at 100yds. I can not understand why Browning produces a rifle with a short Mag. Has anyone else had this problem [/QUOTE]
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Browning A Bolt Magazine to Short
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