I wasn't a fan of B.tip's having 1st hand seen there failure with lack of penetration. Nosler Corrected this by offering hunting and varmint B.tips
bullets. Back in 1998 I tested B.tips shot into rubber sneaker soles, lined up 25 rubber soles on end and fired into them at point blank with a 7mm rem mag 150gr &300win mag 180gr and tested other std bullets. penetration with B.tips was 18 sneaker soles. The 7mm 150gr weigh 100gr
with no shank on the mushroom, shank all the way into the head. The 30cal 180gr weighed 150gr and had shank below the mushroom. I was impressed ! I am now a fan of those bullets (7mm 150gr B.tip and 30cal 180gr). I have shot 4 deer with 7mm 150gr load @ 80,180,200 and 300 yards all pass through, all one shot kill's all shot in kill zone. 300win mag 180gr had pass through at 310yards on my best buck. I have only used B.tips on deer....My range got a few dump truck loads of factory 2nd's sneaker soles for there back stop, so thats where the soles came from.