Original Pre-WWII U.S. Navy Gun 3 Inch / 50 Caliber Dual Purpose Naval Gun Drill Round Dated 1921 M3 Grease Gun and after studying at Wimbledon

and after studying at Wimbledon and Dresden he was admitted (1847) to the Royal Military Academy at Woolwich and completed his military training in the School of Military Engineering at Chatham

which makes this publication very appealing to a range of readers such as military historians

This is the more desirable leather washer handle version

A similar Short Rifle edition of this same weapon

Original Pre-WWII U.S. Navy Gun 3 Inch / 50 Caliber Dual Purpose Naval Gun Drill Round Dated 1921 M3 Grease Gun and after studying at WimbledonOriginal Item: Only One Available. This is a fantastic practice round that the USN used to drill with that fired a small rifle cartridge in the steel barrel that was in the brass casting. The rifle cartridge was much cheaper than firing a full size round. If you look at it closely it has a steel barrel inserted through the length of the shell. It most likely fired a 30 40 Krag cartridge. This drill round was designed for the U. S. Navy 3 in. 50