917601 Posted November 30, 2020 Share #1 Posted November 30, 2020 Posting pics of a 120mm AP round. This one blue, a practice gunnery round. A massive round, 52” tall. It was seperate loading, tank gunner inserted the projectile into breech, then the massive brass casing. The 120mm gun originated as a 50,000ft plus AA gun, in the late 50’s designed it into the M103 Heavy tank. The Marines finally ditched the massive M103 tank in the late 70’s. Link to comment Share on other sites More sharing options...
Lsparks Posted November 30, 2020 Share #2 Posted November 30, 2020 In AAA terms, that’s the Stratosphere Gun. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
917601 Posted November 30, 2020 Author Share #3 Posted November 30, 2020 A pic to realize the size. IBM ( itty bitty marine) is handling an HE round. Link to comment Share on other sites More sharing options...
917601 Posted November 30, 2020 Author Share #4 Posted November 30, 2020 Another pic for size comparison. My Black 120mm AP ( same as my blue practice round, but has a hardened steel bolt) pictured next to a modern era 120mm kinetic AP. 50’s tech vs 2000 tech. 2700 FPS vs 5,000 FPS. Link to comment Share on other sites More sharing options...
viking4zero Posted November 30, 2020 Share #5 Posted November 30, 2020 I thought the 155mm howitzer rounds I have were big ! Link to comment Share on other sites More sharing options...
EmperorWangDong Posted November 30, 2020 Share #6 Posted November 30, 2020 Hate to be the poor SOB stuffing the breech, they all must have had arms like tree trunks. Link to comment Share on other sites More sharing options...
caseloadr Posted December 3, 2020 Share #7 Posted December 3, 2020 Have just the projectile of the 120mm . Let's say it is something not to stub your toe against as I did one night. Link to comment Share on other sites More sharing options...
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