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Posted: 9/8/2006 7:24:55 PM EDT
| Since the 6920 is an LE M4, does it have a 14.5" barrel with a flash supressor that makes it 16", or is the barrel length 16"? |
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WTF are you talking about? If you shoot a 77gr bullet from a 16" barrel, it will still work with the BDC, you just zero at 50 and you're dead on at all ranges but one, where you're a whopping 1" off. For 62gr, it makes no difference from 14.5 to 16. Nobody's using the ACOG for benchrest shooting. |
Read more...post less...the first 5 were a waste. |
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For what it's worth, I've shot all ranges out to 600 meters using an ACOG on a 14.5" flat-top, and had no problems hitting a man-sized reactive target at any range, even though I used 55 grain ammo that the reticle is not calibrated for. The BDC works very well for the intended purpose - that is, hitting a man sized target at an unknown distance range. Besides, it could be that the reticle is calibrated for a 14.5" barrel, they just say it's for 16" barrels because that barrel length is predominant in the civilian world. 16" barrel and SAAMI spec ammo - nobody will notice the difference, even if they really calibrate it for M855 through an M4. Perhaps Trijicon just wants to avoid all the whining that they should offer a reticle calibrated for 16". |
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