Things I liked: Just got my new .25 Benjamin Marauder today, put a UTG (Leapers) 4-15x40 Varmint/Predator scope on it (dual leveled it) within first 15 shots of sighting in with these JSB Exact Kings I had quarter size grouping at 25 yards...Wow, not even broken in yet!
Things I would have changed: Nothing...the best IMHO!
What others should know: Buy these you won't be disappointed!
Things I liked: Sam Yang Big Bore 909S inside barrel diameter .454 these have an average outer diameter of .453 and fit perfectly into barrel unlike the steel core Havoks which are .456 outer dia skirt (won't work in my 909S cause only goes in about 80% of the way), very accurate!
Things I would have changed: Packaging like the Havok steel cores with styrofoam insert in the box instead of just tossing them in a box.
What others should know: When loading these pellets they should seat completely even with front edge of barrel in the loading port.
Things I liked: Outer diameter not mentioned in specs is .456 and will only seat into my Sam Yang 909S .45 about 80% of the way, where as the hollow points which are .453 in diameter fit perfectly...
Things I would have changed: Put outer diameter of these on the description of the ammo both web and packaging so customers know (.45 alone doesn't cut it). Ended up having to return in exchange for the hollowpoints which I know will work.
What others should know: make sure the rear of the ammo seats flush with the front of the loading port of the barrel and doesn't protrude out, else the diameter of the bullet is too large and you could damage your rifle or seriously injure yourself!