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Posted: 12/11/2010 12:38:17 PM EDT
| I was wondering if the reticle from the TA31RCOM4 is the same as the TA31F with the exception of the horizontal stadia lines? This meaning its BDC is still calibrated for a 14.5 inch barrel. |
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Supposedly from Trijicon (I say supposedly because it is quoted from another forum as a response from Trijicon):
"The BDC of the TA31F is not based on the trajectory of a 14.4 inch or a 20 inch barrel- it is based on 62 grain bullet exiting a muzzle at 3050 ft/sec (about a 16 inch barrel)." The TA31RCOM4 is calibrated for M855 from a 14.5" barrel, as is the TA01NSN. The TA31RCOA4 is designed for a 20" barrel, and the M150RCO splits the difference between 14.5" and 20". The TA01 is calibrated for carry handle mounting, 55gr. from a 20" barrel. There is also the differences in accessories included (case, killflash, flip caps, retained caps, ect.) and the M150 uses different adjustment increments. HTH, ~Augee |
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