>>38306810>Helluva tip heavy design
Not really. There's enough distal taper in it that the widening out by the cutting part doesn't really get anything to say about it. A good rule of thumb is that a profile shot like that barely says anything about weight or balance, due to how much difference the thickness can make.>When was it phased out?
Looking at the phase-in first, the m/1847 is nearly identical to the m/1842, so that's where the cavalry started using these "demi-leafblades". The next sabre to come along was the far more conventional m/1854 (pic). Heck knows how long it took to completely replace the m/1847, the '54 would keep getting minor changes to its scabbard starting in 1868 and going all the way until 1912 (pic shows the last style) but the '47 doesn't appear to have gotten any whatsoever.
After the '54 we have the near identical m/1864, and then there's the m/1867 that used an identical blade but a new guard, and finally the m/1893 that kept the '67 guard and went with a straight, double edged blade. These also got the relevant scabbard upgrades as required to stay in fashion (so the -93 only needed the 1912 one). The m/1893-12 variant is technically still in use, though only ceremonially such (you can do a GIS for beridna högvakten). I don't know when exactly they gave up on fighting with them, but I'd guess WW1 or soon thereafter.