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42769vette · June 28, 2009, 08:26 PM

I recently built an AR, using a RRA 20" bull varmint barrel with Wylde chamber. Leade is much shorter than with my other .223s. Have to load @ 2.220" or shorter, or I'm into the lands, with 55gr. bullets.

Also recently built an AR, using M4 YHM chrome-lined barrel. Glad I used the old Stoney Point tool to determine length to the lands. Again, much shorter than with other .223s

this statement shows the diffrence in the exact same guns. rra 20" bull upper and im loading 2.25 and not in the lands. i soft seated a few and my lands are 2.4-2.5.

June 28, 2009, 08:26 PM	#8
42769vette Member Join Date: January 11, 2009 Posts: 86	I recently built an AR, using a RRA 20" bull varmint barrel with Wylde chamber. Leade is much shorter than with my other .223s. Have to load @ 2.220" or shorter, or I'm into the lands, with 55gr. bullets. Also recently built an AR, using M4 YHM chrome-lined barrel. Glad I used the old Stoney Point tool to determine length to the lands. Again, much shorter than with other .223s this statement shows the diffrence in the exact same guns. rra 20" bull upper and im loading 2.25 and not in the lands. i soft seated a few and my lands are 2.4-2.5.