thank you very much
Not sure if you guys watched it yet but on the gun part he keeps mentioning XM274 and Delta 3 when we know that the HSTVL or RDF-LT never used that gun and the game ammunition is wrongly named.
Yeah, I was hoping he would touch on this but it didn’t look like he did.
“This leads us to Delta 3. Specifically, they lengthened the breech 3 inches which gave them a lot more wiggle room”
I believe he’s referring to XM274 for this.
From my understanding of the video, there was two rounds made prior to XM274. Those having similar penetration as the M735 and and M774. I’m unsure what what the cannon designation is so I’m assuming it was made for the ADMAG cannon.
“Now, we have no idea how much the Delta 3 round penetrated or anything like that” (contrasted with Delta 6, which he does give a penetration figure for — 430mm against a 450mm block)
So my question is if Delta 3 was one of those two prior rounds encased in a bigger cartridge or if it was something new entirely?
Even then it seemed like he was incinuating that the XM274 was mounted on the hstvl. I don’t know to be honest and I’m probaby wrong on all this.
We should probably ask the guy who made the bug report.
oh @STGN, grant us with your wisdom and knowledge
probably important to note that it is at least 2 different rounds made
with it not clear if there were rounds developed in between those 2 and the later known rounds
I have been summoned.
Spookstons video is about the history surrounding the HSTV-L and ARES 75mm, he mentions both ADMAG and XM274, and he dosen’t say that the XM274 got mounted. So I see it as just correcting some myths. I guess he could have been clearer about the gun but it’s no biggie to my ears.
Though a new myth was added, the HSTV-L dosen’t have a magazine feeder, neither a 6 round carousel or the straight one he showed. The guy working on the HSTV-L was surpriced by the lack of the 6 round carousel, saw an open space and looked in a document that had the box magazine close to the HSTV-L name, but in actuality it’s a transfer and ram mechanism that grabs a singular round out of the serpentine linear linkless system then transfers and rams the round into the gun breach. This is likely why they referer to it as dual feed because you can rotate the linear linkless system to index the desired round type thereby switching from AP to HE and vice versa on a whim. The 6 round boxy magazine feeder in the picture is for XM274 and is single feed.
The transfer and rammer is the yellow thing it swings to the side and grabs a round from the linkless system:

Here is where it grabs the round:

Yes.
75mm ADMAG uses 5.2" x 16" CTA cartridges, XM274 uses 5.2" x 19" CTA cartridges.
The “on par with M774” statement definitely applies to atleast one XM274 round as can be seen through this AAI brochure:
Where is the propellant and how the heck does it fire?
propellant goes here

and the pressure differential from the back of the sabot to the front of the sabot moves the shell
its really just like this, but with the tip of the dart ending at the red line

Oh, so it’s just a normal sabot
I thought that the propellant was in the thing for some reason
Hi it’s me again, in which report did the AAI FF round come from?

