Craig
It's a 450...it has the same punch as a 45-70 but uses a 200 to 250 grain bullet. It is a neat round...plenty for any hog or even bear. The 50 Beowuf is also plenty of gun for hogs....you can get up to a 500 grain bullet for it!!!! Both use the same lower as the 5.65 or the 6.8...the clips are different.
Bill