The Firing Line Forums - View Single Post - Results: Shooting 180 grain bullets in a 1:12" 308 Win barrel

Jimro · December 27, 2012, 09:42 PM

Just to caveat what Bart B said about the 190 SMK through 308 service rifles, the Air Force team had to drill a gas relief port in their M14s to handle the added pressure, which is why that particular modification is still CMP legal for EIC matches. I don't want anyone to take the recipe Bart listed and fire it in a stock M1A thinking that it is fine, odds are they'd get a damaged oprod very quickly.

Brass life with the 190 load was very short (but brass life is generally very short from an M14/M1A platform), but the load did win matches.

With the introduction of the 175 SMK, pretty much everyone has given up on the 190's for High Power/EIC competitions as now they can use a 175 SMK "across the course" load.

Jimro

December 27, 2012, 09:42 PM	#24
Jimro Senior Member Join Date: October 18, 2006 Posts: 7,097	Just to caveat what Bart B said about the 190 SMK through 308 service rifles, the Air Force team had to drill a gas relief port in their M14s to handle the added pressure, which is why that particular modification is still CMP legal for EIC matches. I don't want anyone to take the recipe Bart listed and fire it in a stock M1A thinking that it is fine, odds are they'd get a damaged oprod very quickly. Brass life with the 190 load was very short (but brass life is generally very short from an M14/M1A platform), but the load did win matches. With the introduction of the 175 SMK, pretty much everyone has given up on the 190's for High Power/EIC competitions as now they can use a 175 SMK "across the course" load. Jimro __________________ Machine guns are awesome until you have to carry one.