https://www.quora.com/For-someone-who-has-shot-both-the-McMillan-TAC-50-and-the-Barrett-50-cal-what-is-the-difference-between-these-two-guns-What-are-they-used-for-What-are-their-effective-ranges-Do-they-fire-the-same-cartridge-How-do
It's accurate at long ranges, and even though it (and its ammo also) is very heavy, it's like a toy compared to the weight and bulk of a .50 BMG ...