I have a few of those B.B. Lehigh.
I am curious how those stack up against a good 300 grain flat nose hard cast as to penetration.
The same curiosity regarding the 480, 330 grain against the 410 hard cast.
The 300 grain Lehigh in 45 Colt, in theory I would guess would be more of a penetrator than the 325-335 hard cast.
The 380 grain Lehigh in the 45-70 also looks promising.