Load request: M118LR duplicate

[elmontemike]

Cartridge, Caliber 7.62mm Special Ball, Long Range, MK 316 MOD 0 (United States): A 175-grain (11.3 g) round specifically designed for long-range sniping consisting of Sierra MatchKing Hollow Point Boat Tail projectiles, Federal Cartridge Company match cartridge cases and Gold Medal Match primers. The Propellant has been verified as IMR 4064 (per NSN 1305-01-567-6944 and Federal Cartridge Company Contract/Order Number N0016408DJN28 and has a charge weight per the specs of 41.745-grain (2.7 g)

[highpower790]

So 43grn of Varget seems to be the equivalent?

I'm trying to replicate this load for my 5R and I have a lot of Varget, Win primers and brass along with 175 SMK's.

For my M1A I load 42gr of Varget or IMR4895 with the 175.

[bigedp51]

The official M118LR round does use RE15 powder. However, I'm wondering if anyone has found/heard of a duplication of M118LR using IMR 4895.

The M118lr was replaced by the load below because RL15 was a double base powder and was heat sensitive and inaccurate when used in the temp extremes of Iraq and Afghanistan. (NFG)

The MK 316 MOD 0 cartridge below was "contracted out' to Federal ammunition and not made at Lake City.

Cartridge, Caliber 7.62mm Special Ball, Long Range, MK 316 MOD 0 (United States): A 175-grain round specifically designed for long-range sniping consisting of Sierra MatchKing Hollow Point Boat Tail projectiles, Federal Cartridge Company match cartridge cases and Gold Medal Match primers. The Propellant has been verified as IMR 4064 (per NSN 1305-01-567-6944 and Federal Cartridge Company Contract/Order Number N0016408DJN28 and has a charge weight per the specs of 41.7-grains.

The 7.62mm, Match, M852 used the 168-grain Sierra SMK and 42 grains of IMR-4895 powder.

TM 43-0001-27 (U.S. military cartridges and load data)

https://www.ar15.com/content/webPDF/TM43-0001-27.pdf