Re: 180grn vs. 175grn SMK .30 cal
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: sinister</div><div class="ubbcode-body">The "Old" Sierra 180-grain Match King had a long boat-tail which was very aerodynamic. They have since changed it to a shorter boat-tail which is not nearly so. These were favored for Camp Perry 1,000-yard long-range match M14s, balancing weight with room for powder to push the bullet as fast as possible from a 22-inch barrel.
The 180 Game King retains the old long boat-tail angle and has been shot to good effect at Camp Perry.
As Lake City dies for 173-grain Match started wearing out the Marines requested a bullet with the accuracy of the 168 that would remain supersonic at 1,000 yards out of M40s and M14 rifles. From older articles by Kevin Thomas (formerly of Sierra), Sierra engineers took the ogive of the 155 Match King, lengthened the shank, and modified the boat-tail. It is an effective long-range 7.62 bullet.
You could shoot the 180 out of a .300, but the .300 shines with bullets 190 and heavier.</div></div> Would that be the 180, the one you stated came from the 155 ogive, longer shank, and mod boat tail?