That will be very interesting. In the end, I have ordered a CZ 550 in 458 win mag. I can get it reamed to Lott if I find that necessary. Currently win mag ammo factory is roughly $12 cheaper than Lott and $22 cheaper than 416 rigby PER ROUND.. Essentially I can shoot 2 or 3x as many rounds per year of win mag. I look forward to your article/video, maybe you could link to it in this thread ? Many reloaders in Southern Africa cant access the right powder to get the velocity up and so seat the bullet out a little to create more powder capacity. SAAMI specs show that the Lott and win mag chambers are different shapes as well as different lengths and that you can seat the bullet out further in a Win mag.