Subcaliber ammo any idea what it is

[45B20]

DRB
These Sub-Caliber Cartridges are based on the .30 Cal Army case (30-40 Krag). “They were designed to be fired from sub caliber barrels mounted within or on the outside of the main artillery gun tube”. The first of these sub-caliber cartridges were developed in 1902. Some had enlarged primers to be used with the standard artillery firing pin and some had 0.317 dia Berdan primers. Some had typical .30 Krag projectiles, but starting in 1924 the some of these sub-caliber cases were loaded with the 1924 National Match 172gr., gilding metal-jacket, boattail bullet. This loading was adapted in 1925 as the Cartridge, Sub-Caliber, Cal..30, Model of 1925. Beginning with Lot 30, (FA 28), M1ball bullets appear to have been used.

These cartridges were designed primarily for the sub caliber tube used in the 3-in. seacoast gun.

During 1927-27 a quantity of Model 1925 sub caliber ammunition was released to shooters thru the DCM as a substitute for Cal. .30 Ball, M1898 Krag cartridges, which at that time were not available.

All of the above is from “History of Modern U.S. Military Small Arms Ammunition” by Hackley, Woodin and Scration, Vol. I. This volume has a lot more information on this cartridge, I have given you just a bit of this information.

DRB, there is a illustration on page 93,, very similar to yours but it was loaded on Mar 20, 1923 and is from Lot 20

Any one with even a passing interest in U.S. Military small arms, should have all three volumes. Vol. I & II are available, Vol. III is finished but not yet printed.

Added note: this ammunition was available thru WWII.

45B20

Information

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[A. F Medic]

When I was at the rifle range, I noticed an unfired .22 cartridge.

It's case looked like a .22 long but had a bullet larger then the case! My gunsmith said it is a subsonic round (quiet) made by Aquila. There is an A on the botom of the round.

Anybody else see one? I was told you could shoot neighborhood chipmunks etc without disturbing the neighbors!

[edlmann]

When I was at the rifle range, I noticed an unfired .22 cartridge. It's case looked like a .22 long but had a bullet larger then the case! My gunsmith said it is a subsonic round (quiet) made by Aquila. There is an A on the botom of the round.

Click here.

[DRB]

DRB
These Sub-Caliber Cartridges are based on the .30 Cal Army case (30-40 Krag). “They were designed to be fired from sub caliber barrels mounted within or on the outside of the main artillery gun tube”. The first of these sub-caliber cartridges were developed in 1902. Some had enlarged primers to be used with the standard artillery firing pin and some had 0.317 dia Berdan primers. Some had typical .30 Krag projectiles, but starting in 1924 the some of these sub-caliber cases were loaded with the 1924 National Match 172gr., gilding metal-jacket, boattail bullet. This loading was adapted in 1925 as the Cartridge, Sub-Caliber, Cal..30, Model of 1925. Beginning with Lot 30, (FA 28), M1ball bullets appear to have been used.

These cartridges were designed primarily for the sub caliber tube used in the 3-in. seacoast gun.

During 1927-27 a quantity of Model 1925 sub caliber ammunition was released to shooters thru the DCM as a substitute for Cal. .30 Ball, M1898 Krag cartridges, which at that time were not available.

All of the above is from “History of Modern U.S. Military Small Arms Ammunition” by Hackley, Woodin and Scration, Vol. I. This volume has a lot more information on this cartridge, I have given you just a bit of this information.

DRB, there is a illustration on page 93,, very similar to yours but it was loaded on Mar 20, 1923 and is from Lot 20

Any one with even a passing interest in U.S. Military small arms, should have all three volumes. Vol. I & II are available, Vol. III is finished but not yet printed.

Added note: this ammunition was available thru WWII.

45B20

Thanks for the information so they are Krag ammo. The 3 inch seacoast usage makes sense as there used to be all kinds of Forts around here gaurding the entry to Puget sound. I got a box of regular Krag ammo from the same guy that was loaded in 1910 by Frankford Arsenal and a box of 30 model 1906 loaded in 1920 that is for aircraft use according to the box.