Sheffield

Don't hold me on this but as far as I know, there was a picture of a brochure of DM53 posted sometime in the past on the net where it said the penetrator body was 685mm though I don't remember if it also said anything about the diameter;
 
Regardless of this, i think comparing DM53 to Type 10 AFPSDS is a bit of a moot point and it would do us better to compare DM53 to M829A1/2 which both have 680x22mm and 690x22mm penetrators respectively in a projectile body roughly ~760mm long (though it's 779mm long in total).
 
There's also the case of yet another, I believe Rheinmetall brochure from 2014 or so stating that the projectile body of DM53 is 745mm long (i'm assuming that they excluded the fins that extend beyond the body of the main body of the projectile.
 
I've done my own share of estimates on DM53 and 63 in my free time and this is what I had got:
DM53:

 
DM63:

 
Did an estimate for DM53 once again just a moment ago;

 
 
In regards to the DM63 estimate, since i already had numbers for diamater and the stuff, i just did a comparison of how long fins on the 53 and 63 are, substracted the difference and that's how i got to ~770mm total length and 745mm "effective projectile length" (or perhaps it could be called in-flight length?).
 
 
edit: just found this, i don't know where this comes from but the penetrator length matches what was said in the Brochure, diameter is a bit too high though it also matches if you count in the ribs which in my estimates were roughly 25.8mm
 

 
And overall i think this graphic is legit; 
DM13 estimate:

 
DM23:

 
DM33:

 
They all roughly fit with penetrator length, diameter is a bit iffy cause I dunno what kind of criteria they used for diameter there.
 

Don't hold me on this but as far as I know, there was a picture of a brochure of DM53 posted sometime in the past on the net where it said the penetrator body was 685mm though I don't remember if it also said anything about the diameter;
 
Regardless of this, i think comparing DM53 to Type 10 AFPSDS is a bit of a moot point and it would do us better to compare DM53 to M829A1/2 which both have 680x22mm and 690x22mm penetrators respectively in a projectile body roughly ~760mm long (though it's 779mm long in total).
 
There's also the case of yet another, I believe Rheinmetall brochure from 2014 or so stating that the projectile body of DM53 is 745mm long (i'm assuming that they excluded the fins that extend beyond the body of the main body of the projectile.
 
I've done my own share of estimates on DM53 and 63 in my free time and this is what I had got:
DM53:

 
DM63:

 
Did an estimate for DM53 once again just a moment ago;

 
 
In regards to the DM63 estimate, since i already had numbers for diamater and the stuff, i just did a comparison of how long fins on the 53 and 63 are, substracted the difference and that's how i got to ~770mm total length and 745mm "effective projectile length" (or perhaps it could be called in-flight length?).
 
 
edit: just found this, i don't know where this comes from but the penetrator length matches what was said in the Brochure, diameter is a bit too high though it also matches if you count in the ribs which in my estimates were roughly 25.8mm
 

 
And overall i think this graphic is legit; 
DM13 estimate:

 
DM23:

 
DM33:

 
They all roughly fit with penetrator length, diameter is a bit iffy cause I dunno what kind of criteria they used for diameter there.
 

Bore size plays it's role, but double-ramp sabots, developed for high elongation penetrators, needs to be long to properly support the rod during firing. Sabot design is not all about reduction of parasitic mass, it should be light enough, but it has other important tasks. Old Soviet 125 mm metal sabots got it's merits, but using ring sabots and full-bore fins and low elongation penetrators today might be considered as suboptimal.
 
Changing sabot material, as in case of M829A1>M829A2, is one way to go (btw. where did you find information that sabot of M829A3 is 30% lighter than one of shorter's M829A2). The other is novel sabot design. And this is the way that Rheinmetall is said to choose in new developments (DM 73 probably not, KE2020Neo probably yes).

It amuses me to know that you actually see yourself as dangerous in this way, like you're some kind of master swordsman deftly parrying and counterattacking multiple foes at once as they surround you.
 

 
It's a cute image. But in reality:



Everybody's at the park, watching the fat retarded kid go!

I created my account only some time ago as I did not feel the need to really engage in discussions here but, I absolutely adore how our beloved friend Delete stated he was only "trolling" and about 2 posts later went back to being completely serious about everything he says.
 
This is pure gold, a flawless comedy, i'm on the verge of tears from reading and laughing at every piece of turd his mouth shits out and i'm sure there's more to come.

I created my account only some time ago as I did not feel the need to really engage in discussions here but, I absolutely adore how our beloved friend Delete stated he was only "trolling" and about 2 posts later went back to being completely serious about everything he says.
 
This is pure gold, a flawless comedy, i'm on the verge of tears from reading and laughing at every piece of turd his mouth shits out and i'm sure there's more to come.

I created my account only some time ago as I did not feel the need to really engage in discussions here but, I absolutely adore how our beloved friend Delete stated he was only "trolling" and about 2 posts later went back to being completely serious about everything he says.
 
This is pure gold, a flawless comedy, i'm on the verge of tears from reading and laughing at every piece of turd his mouth shits out and i'm sure there's more to come.

I created my account only some time ago as I did not feel the need to really engage in discussions here but, I absolutely adore how our beloved friend Delete stated he was only "trolling" and about 2 posts later went back to being completely serious about everything he says.
 
This is pure gold, a flawless comedy, i'm on the verge of tears from reading and laughing at every piece of turd his mouth shits out and i'm sure there's more to come.

I created my account only some time ago as I did not feel the need to really engage in discussions here but, I absolutely adore how our beloved friend Delete stated he was only "trolling" and about 2 posts later went back to being completely serious about everything he says.
 
This is pure gold, a flawless comedy, i'm on the verge of tears from reading and laughing at every piece of turd his mouth shits out and i'm sure there's more to come.

I created my account only some time ago as I did not feel the need to really engage in discussions here but, I absolutely adore how our beloved friend Delete stated he was only "trolling" and about 2 posts later went back to being completely serious about everything he says.
 
This is pure gold, a flawless comedy, i'm on the verge of tears from reading and laughing at every piece of turd his mouth shits out and i'm sure there's more to come.

That guy is just making up numbers and it is easy to see that they are wrong.