What Is That Milsurp Loading?

by
posted on May 16, 2019
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
milsurp-throwback1.jpg
As with all milsurp ammunition, we must know more than just the type of cartridge we intend to shoot; as military cartridges were and are routinely loaded with tracer, incendiary and sometimes even explosive projectiles. These all pose obvious hazards, including armor piercing ammo, which have been blamed for sparking wildfires and thus in many places is illegal to shoot.

In the accompanying photo at the top of this article, the headstamp on the .303 British case on the left tells us it was manufactured in 1948 (“48”) at the Greenwood and Batley (“GB”) facility in England, and that the projectile is the MK VII ball round (“7”). The cartridge on the right is a G2 tracer round (“GII”) from the Royal Ordnance Factory, Blackpole, Worcester (“BE”), England, in 1943 (“43”).

More correctly, manufacture of the cartridge cases occurred at these facilities, but “filling” (as the British call it) of the cases with propellant occurred at different locales, probably due to concerns with accidents and sabotage—as well as for dispersing manufacture to mitigate losses from enemy bombings. Therefore, BE cases received their cordite at Swynnerton, and the Abbey Wood and Farnham facilities filled the GB cases.

Information on these headstamps came from the Carpetbagger Aviation Museum in Harrington, United Kingdom. The museum opened in 1993 to honor Americans of the 801st/492nd Bomb Group, which carried out Operation Carpetbagger to supply resistance fighters in Occupied Europe during World War II. The museum also has an extensive ID list of cartridge headstamps used by the U.S. during that war.

More articles from SSUSA Field Editor Art Merrill:

Latest

Titanx Mantis 1
Titanx Mantis 1

New: Mantis TitanX Laser Trainer

The new TitanX is an inert laser trainer pairing realistic controls with the MantisX analytics ecosystem for data-heavy dry-fire practice.

Collegiate Rifle: Nebraska Takes Over No. 1 Spot in CRCA Rankings; TCU, Navy Surge into Top Three

Nebraska claims the top CRCA rifle ranking, TCU surges to No. 2 with a big win and Navy jumps to No. 3.

Marksmanship Milestones: 1985 National Matches

The 1985 National Matches featured record scores, historic wins and major facility upgrades at Camp Perry.

Inside the 2025 NRA World Shooting Championship

Nils Jonasson claims top title at multi-discipline 2025 NRA World Shooting Championship, held at Camp Atterbury in October.

White Flyer, Winchester Boost South Dakota’s New Shooting Sports Complex with Massive Target Donation

Winchester Ammunition and White Flyer Targets fuel the debut of South Dakota’s new shooting sports complex with a major donation and focus on community growth.

Collegiate Rifle: Underdog Akron Stuns Top-Ranked Rivals, Wins Four-Team Tournament

Akron rifle stuns top-ranked teams in Columbus as senior Natalia Siek breaks multiple records, leading the No. 17 Zips to victory.

Interests



Get the best of Shooting Sports USA delivered to your inbox.