This is more of a history thing, than a physical round question.
As we all know early 17Lbr APDS was pretty inaccurate. And during the last two years of the war (and beyond) several experiments were carried out to improve its accuracy. I've been flicking around and finding lots of odd sources, but none paint a clear picture (and annoyingly the Ordnance board Proceeding that says "17Pdr DS shot accuracy trials" was omitted from the book. Lucilly I was after something else, and had a passing interest, hence why I looked.
So as I understand it the 17Pdr APDS evolution goes something like this:
MKI: Bog standard APDS round, with the woeful accuracy.
MKII: The Centre of gravity was moved slightly back, which improved the accuracy, and there may have been some minor Canadian additions to the design. This started coming into service towards the end of 1944.
MKIII: Post war round, using the Canadian Pot Sabot type.
So how close am I? Or is there a better summary?
Thanks.
As we all know early 17Lbr APDS was pretty inaccurate. And during the last two years of the war (and beyond) several experiments were carried out to improve its accuracy. I've been flicking around and finding lots of odd sources, but none paint a clear picture (and annoyingly the Ordnance board Proceeding that says "17Pdr DS shot accuracy trials" was omitted from the book. Lucilly I was after something else, and had a passing interest, hence why I looked.
So as I understand it the 17Pdr APDS evolution goes something like this:
MKI: Bog standard APDS round, with the woeful accuracy.
MKII: The Centre of gravity was moved slightly back, which improved the accuracy, and there may have been some minor Canadian additions to the design. This started coming into service towards the end of 1944.
MKIII: Post war round, using the Canadian Pot Sabot type.
So how close am I? Or is there a better summary?
Thanks.