Bullseye,
My bullet that I used for years was the 140 X bullet flat base. Loved it. But this last fall I was forced to switch to the 130gr flat base due to availability issues of the 140's. We did use the last of the 140's to hammer one moose and one elk this last fall, the moose went down at the shot after my partner missed him 4 times with an '06 (talk about eratic accuracy) at 275 yards. Quartering in at 278 yards, 4 feet of penetration, neck, shoulder, and spine all decimated with a bullet hole you could poke a pool cue through. That's the main reason I use X bullets. I like knowing that regardless of the angle, regardless of which way a big critter is pointing, I can slip a bullet into his lungs. Even if it means breaking his skull, his shoulder socket, his hip, whatever is in the way, first. Although, the speeeeeed of the 130's was pretty cool I must say. I didn't receive full penetration from the 130 on the whitetail I shot last fall, however, that bullet was still doing in the neighborhood of 3000fps+ when it hit him in the chest, and we recovered that one in his back leg, under the skin. So I guess 5 feet of penetration is okay at close range. Better than finding fragments in his liver from a lead core plastic tip bullet any day!