124/115 grain Corbon JHPs, in a BHP or STI BLS. 147s are grossly inconsistant expanders, they will penetrate, but so will ball(for less money!). 147 gr HydraShoks did not expand in 37 core-body hits from an MP-5 (+/- 10" barrel, no gas-bleed to lower energy) from one local BG vs LE confrontation report I got to see, some years ago(and in numerous other Federal and local LE shootings). Good enough to make me stay away.
"Stopping" is totally situational/individual dependant, and not necessarily consistent with expansion, or lack of. Expansion=traumatic impact, regardless of the degree of that effect on the individual . You increase the likelyhood of stopping an individual by increasing the likelyhood of expansion. Nothing is 100%, "You pays you money, you takes your chances....".:icon_neutral:
I'll play the better odds in favor of expansion(shot placement is my job, not the bullet's)- lower to midweight bullet, with high velocity.