keith,

You are in sooooooooooo far over your head,it's HILARIOUS.

The 75A-Max's ogive location,is all but identical to the 50V-Max. A SAAMI throat will kiss the 75 and 50 both and very nicely...lengthening same,is the last thing a guy wants to do.

A 21" 1-8" 223AI that kisses the 75A-Max at 2.450" COAL will also kiss the 50's and 40's,if one is inclined. From a 200yd zero at 2500',standard atmosphere,that loads requiresless than 27.75MOA to 1K.

Keep talking out your azz,the humor is sublime!............