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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Need help picking first AR
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<blockquote data-quote="bamban" data-source="post: 2987511" data-attributes="member: 17722"><p>In the mid 90s, Bill Wylde built all my ARs for CMP/NRA competition. The main reason for the modification Bill did to the 5.56 is to shoot 80 Sierra SMKs for the 600 yard single load prone events. The modification is longer freebore, and tighter. F/B diameter of 0.2240.</p><p></p><p>Edit: The one aspect of the Wylde I do not like is the neck diameter, too loose at 0.2558. But, it can tolerate more pressure. </p><p></p><p>The longer freebore did not seem to affect some military ammo. Bill lucked out, he came across a good lot of Canadian green tips. He tested every upper he built at 500 yards with the green tips that shot as well as the FGGM.</p><p></p><p>I had a lot of M193s that shot really well in rifles built by Bill. I used the ammo to train with and in standing and sitting rapid matches at 200 yards. Then again the official NRA target at 200 is very generous, 3 inch X-ring, and 7 inch 10 ring.</p><p></p><p>If anyone wishes to test the full potential of any AR rifle, get some MK262s or the civilian versions from Black Hills. FGMMs are good options as well. The IMI MK262s shoot real well. M193s, M855s, and even the M855A1s are hit and miss in the precision department, I would not use them to test my rifles for precision. For a minute of man, all the military rounds are plenty good.</p></blockquote><p></p>
[QUOTE="bamban, post: 2987511, member: 17722"] In the mid 90s, Bill Wylde built all my ARs for CMP/NRA competition. The main reason for the modification Bill did to the 5.56 is to shoot 80 Sierra SMKs for the 600 yard single load prone events. The modification is longer freebore, and tighter. F/B diameter of 0.2240. Edit: The one aspect of the Wylde I do not like is the neck diameter, too loose at 0.2558. But, it can tolerate more pressure. The longer freebore did not seem to affect some military ammo. Bill lucked out, he came across a good lot of Canadian green tips. He tested every upper he built at 500 yards with the green tips that shot as well as the FGGM. I had a lot of M193s that shot really well in rifles built by Bill. I used the ammo to train with and in standing and sitting rapid matches at 200 yards. Then again the official NRA target at 200 is very generous, 3 inch X-ring, and 7 inch 10 ring. If anyone wishes to test the full potential of any AR rifle, get some MK262s or the civilian versions from Black Hills. FGMMs are good options as well. The IMI MK262s shoot real well. M193s, M855s, and even the M855A1s are hit and miss in the precision department, I would not use them to test my rifles for precision. For a minute of man, all the military rounds are plenty good. [/QUOTE]
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AR15/10 Rifles
Need help picking first AR
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