Home Forums Lever Action Central Big Bore Levers Anyone use the Lyman 457122 "Gould Bullet"?

Just curious if anyone has used the so-called Gould hollow point express bullet on game? I'm loading some at around 1200fps with a hardness of 11 out of my Marlin CBA 45-70. Shoots good but I don't currently have the ability to do tests for expansion, etc. curious if anyone here has used it and what they think of this throwback to the 1890's

Thanks,

Tom