I have acquired about 1000 rounds of XM118LR that I am using for the start of an F class 1000 yard rifle. This is marked as lot XM118PD, which my research suggests was released in the civilian market because it didn't meet military QC. Before bedding my rifle, I can safely say that I was able to keep all 20 record shots on the 6'x6' target at 1040 yards. When I chronographed the surplus ammo (head stamped 2011), it was pushing the Sierra 175 matching at 2765 fps out of my 26" varmint barreled Remington. I never saw any signs of excessive pressure.
My questions:
Apparently, there are two variants of XM118LR, general XM118LR in Lake City cases loaded with RE15, and SOCOM's variant known as Mk316 Mod 0 loaded with IMR4064 in "special Federal Gold Medal Match" cases.
1. Was the Mk316 version ever loaded in Lake City "11 LR" cases?
2. Was the Mk316 loaded in Federal or FCC headstamped cases?
3. How does that special Federal case compare to the LC11LR cartridge case?
4. Since both the XM118LR and SOCOM's Mk316 Mod 0 ammo exceed Sierra's load recommendations for military brass, and the RE15 recipe is way hot for commercial brass (per Sierra's manual):
a) Has anyone experienced high pressure signs with repeated reloadings?
b) If so, how many reloads did you get out of a case before you had to toss the case?
c) Has anyone experienced rifle damage from repeated use of either variant of XM118LR, such as bent bolt bodies?
Thanks in advance for your constructive advice.
Note: I wish to duplicate this particular round since it relatively insures that my 1000 yard load stays supersonic on my home thousand yard range which is realistically about 1040 yards close to sea level.
My questions:
Apparently, there are two variants of XM118LR, general XM118LR in Lake City cases loaded with RE15, and SOCOM's variant known as Mk316 Mod 0 loaded with IMR4064 in "special Federal Gold Medal Match" cases.
1. Was the Mk316 version ever loaded in Lake City "11 LR" cases?
2. Was the Mk316 loaded in Federal or FCC headstamped cases?
3. How does that special Federal case compare to the LC11LR cartridge case?
4. Since both the XM118LR and SOCOM's Mk316 Mod 0 ammo exceed Sierra's load recommendations for military brass, and the RE15 recipe is way hot for commercial brass (per Sierra's manual):
a) Has anyone experienced high pressure signs with repeated reloadings?
b) If so, how many reloads did you get out of a case before you had to toss the case?
c) Has anyone experienced rifle damage from repeated use of either variant of XM118LR, such as bent bolt bodies?
Thanks in advance for your constructive advice.
Note: I wish to duplicate this particular round since it relatively insures that my 1000 yard load stays supersonic on my home thousand yard range which is realistically about 1040 yards close to sea level.