The next model up to what you have would be ideal. A Nikko sportsman 10-50x60 Diamond. They come in a mk1,2 and 3. There are 2 ret types of Mildot and NATO. You can pay around £300 for a mk1 and £500 for A mk3 secondhand. All are better optically than the model you have.
I have a mk1 and a mk3, and would say they are very popular in FT.
Lots of others on offer like Sightron, lLeupold, S&B, March, Bushnell and Burris. Personally I use Leupold Competition series.
So it really depends on your budget as some of the scopes mentioned above go upwards of £3K.
The Pope HW97 V-Mach. Gary Cane Laminate stock. Leupold Competition 40 mag Mildot.
The Smiler. Walther LGU. WE Laminate stock. Leupold Competition.
The Dark Destroyer. TX200 MK3. Leupold Competition 40 mag.
Pro-Sport. Warren Edwards Blue Laminate stock. Bushy 8-32x40.