I've only caught one in all the animals I've taken with the Speer 400gr. It was a 300lb+ SC boar and it expanded to 90 cal and maintained nearly all of its weight. It may be soft but it's not fragile.Those 400 grain slugs are always on target and any animal I shoot drops fast , I did have a deer make it 40 yards once . those 400s always make two holes . I like mine running about 1800 to 2000 fps they are the most accurate in my Marlin and it shoots 300 yards in very tight groups
I've shot many sub 1" groups with this bullet and H4198 from my 1895SBL.