recovered 140's because his were started some 400 fps slower from a 7/08 and had much less rotational velocity too. Likely impact velocity was a lot less too....which goes to show what we all should know about impact velocity. The higher the velocity the more violent the expansion. You can't expect a bullet to behave exactly the same way given those differences in velocity. Anyway that 140 AB has 59 gr of bullet left.It still killed good because it chewed up plenty of vital tissue on the way.
How do you know that the velocity was 400 fps less? Less rotational velocity? Sounds like a bunch of BS to me.
Or...do you believe that the 7/08 is only capable of 2800 fps with a 140?
Funny stuff.
Did you look at the exit wound on that bull I shot at 25 yards with my 7RM and 160 AB? If your "theory" holds any water, it should have had a basketball sized exit, or at least displayed the "violent expansion "theory". Impact velocity was likely over 2900 FPS. Didn't look too "violent" to me.
I've never seen violent expansion with an AB, and I've never seen a lack of expansion either.
IMO/E, there isn't enough difference, performance wise, between a partition and an AB to even discuss. I shot partitions for close to 30 years, in a wide variety of rifles. They work great too, but no better than an AB.
