Has anyone any experience of the above ammo? They claim 3900 fps, and a flat trajectory, so I'm wondering that, if they group ok, they could be a wicked fox round. I don't reload, and am presently using Remington Accutip 75g, which suit my rifle and do upset charlie! Would the higher velocity of thr Hornaday, be more likely to wear/burn the barrel at a greater rate? I realise that most of my foxes are taken at between 50 and 130 yds, so in reality the long range stuff doesn't really figure that often, but I'm wondering if they could be, worth a try?