[MigKiller]

After three years of active duty I joined the Colorado National Guard. I was Air Defense Artillery and assigned to a M110 self propelled 8”howitzer unit they sent me back to Fort Bliss and had me train and qualify as a Redeye gunner which is pre stinger shoulder held missile. At summer camp at Fort Carson they had me deliver chow to the firing batteries in the field and I was mesmerized watching these big guns fire. On one a company safety officer asked me if I’d like to pull the lanyard on one and with a little training and nervousness I got to touch off an 8” projectile it was pretty darn exciting!
And little did I know that a few years down the road I’d start my 33 year career with Department of Energy and in the early 80s I was working on the W79 an 8” nuclear projectile for the M110 it was a nasty little nuke!👊🏻🇺🇸

 

[Phil in Alabama]

Just a 12 gauge slug I suppose. Three inchers got some recoil from from a seven and a half pound gun. Next down would be a .50 AE Desert Eagle.

 

[Whistle pig]

16” 2000 lbs USS New Jersey
Vietnam.
John

 

[Snake45]

I was gonna say a 40mm grenade, but I see I'm already beat.

 

[Momo900cc]

MK 48 torpedo

 

[FlysAlot]

16” 2000 lbs USS New Jersey
Vietnam.
John

My hero

 

[FlysAlot]

View attachment 374979
MK 48 torpedo

also my hero

 

[MigKiller]

16” 2000 lbs USS New Jersey
Vietnam.
John

Thanks for your service!👊🏻🇺🇸

 

[MigKiller]

I was gonna say a 40mm grenade, but I see I'm already beat.

Got to love some 40mm trained with the M79 which I loved but later was issued the M16 with the M203.👊🏻🇺🇸

 

[jnyork]

16” 2000 lbs USS New Jersey
Vietnam.
John

One stormy day we were flying under the scud at about 800' or so, southbound feet wet in the general vicinity of Duc Pho. Out of the mist we came upon you guys just as you were firing a mission with the 16" guns, we were maybe a mile away, a very impressive sight for us, we of course stayed outboard of the ship.

 

[Al the Infidel]

3.5" bazooka during weapons familiarization training to be a grunt was the biggest ever. Jarheads tossing live pineapples really kept the DIs on their tippy toes.

 

[Weez556]

.50 cal M-2
40mm Mk-19
500gr 45/70 hurt the most !
Many different 12 gauge to include 50 rounds of 00Buckshot in one day of training. That was actually not the most pleasant day on the range.

 

[Jester560]

.50 cal

 

[Jive Turkey]

Potato gun, 50 cal muzzleloader, 30.06

 

[C.C.]

12 gauge slug! Once was quite enough, thank you very much!

 

[Lawyerman]

Fired a French Puteaux 25 MM several years ago and also a 60MM mortar.

 

[67R/T]

.50 cal

 

[thebeav]

I worked for a local R&D firm here in the70's. My department was primarily concerned with guns, especially cannons, with various military contracts. We worked on things like like better projectile development, materials to reduce barrel erosion, things like that.
We had an underground range on the property for smaller stuff, like 20mm and 25 mm caseless. We also had a rural property for bigger guns like the 60mm caseless, and 75 millimeter. After I had left there, I heard they were even shooting 90 millimeter out there. Needless to say, the neighbors out there didn't like us.
My job was often machining 'erosion rings' that were located at various distances in the barrels, or outfitting various spots on the gun for thermocouple placement. It was a really fun job.

 

[Kestrel4k]

Personally; 3"Mag / 1-7/8"oz of buck from an 18" bbl shotgun, would blow the glasses off the front of my face, lol.

Professionally; 50lbs of ANFO doing explosively-consolidated composite materials research.
Hope that counts - wasn't a projectile per se, but I did get to press the detonator lol.

 

[rwilliams319]

I was blessed to have had a 71193 MOS, largest was MLRS M26 rocket 9" or so and all other current cannons plus 175mm Gun and 203mm/8" Howitzer.