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2/24/2006 7:28:19 AM EDT
Zeroed my new RRA midlength 1:9 Chromed lined with Q3131A when I bought it with Dominator mounted EOTech and with irons at 50 yards.

Finally got out to shoot it again and it was shooting 2 1/2 inches high with both irons and EOTech using PMC factory .223 - which I believe is loaded pretty light.

It is unusual to have such a zero variation with different ammunition?

2/24/2006 7:35:53 AM EDT
[#1]
Yes this is common.  You can even have a variation using different lot numbers of the same brand of ammo.

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