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

Thigpen Rem Oct2026 1
Thigpen Rem Oct2026 1

Team Remington’s Connor Thigpen Sweeps 2026 World Skeet Championships

High schooler Connor Thigpen won High Over All, High All Around and Mini World HOA at the 2026 World Skeet Championships.

A Summer Of Legends: 1999 National Matches

Nearly 3,800 shooters attended the 1999 National Matches, where Steve Reiter, Troy Bassham, Lones Wigger, Jr., and G. David Tubb won national titles.

Collegiate Rifle: Navy Shows Why It’s No. 8 — and Maybe Better

No. 8 Navy beat No. 15 Akron 4732-4674, as freshman Maddie Allen led the Zips in both smallbore and air rifle.

New: Springfield Armory SA-35 4" Polished Blued 9 mm Pistol

Springfield Armory’s new SA-35 4" Polished Blued pairs the shorter 9 mm Hi-Power-pattern pistol with a high-gloss finish for $799.

USA Clay Target League Opens Its Doors To Club Teams

Youth groups and local clubs can now field USA Clay Target League teams for grades 6-12, no school approval required.

Four Collegiate Competitive Shooters Go Perfect In Air Rifle

West Virginia and Navy shooters fired four perfect air rifle 600s Oct. 3-4, and WVU’s Griffin Lake shot a 598 smallbore.

Interests



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