I suppose it depends on how you define fragile. Here is a pic of a recovered 140gn Hornady Interlock shot from a 270WSM at a muzzle velocity of 3000fps (69gn of H1000) Despite its appearance it performed well on a big crusty hog.

It's kind of hard to see from the picture, but it looks like there's a decent amount of shank left in that bullet under the mushroom. How far away was that hog when you popped him?

I actually just bought a box of these 140's. My cousin drew a Utah mule deer tag and I'm going to load up 50 for him. I'm going to load the other 50 for myself. My .270 is sighted in for 140gr TSXs right now, mainly because I carried this as back up for an elk hunt last year (and ended up using it to drop a 6x6). Since elk tags are few and far between for me, I want a load that will take care of everything else and not break the bank.

Now...where to start...4350, 4831 or RL22? Those are the powders I have in stock - I think I have more 22 than anything, so maybe will go there first.

Agree with the last sentence, but 3050-100 is safely doable in a 270 with 140s with the right powders, ie 4831, R-22, etc, in a 24" bbl.

H4831 with a Fed 215 in the 270 with this 140 is a sack of hell on deer.

Dingo, I bet that hog had a lot of caked on mud to make that bullet come apart like that.

The 150g Hornady Sp is even tougher yet, too tough for deer for my likings. I shot through two does standing side by side and the 150 never slowed down.

I shoot the 130's Sp flat base due to the accuracy that my rifle gives with this bullet. Rifles like what they like.

More than likely it hit heavy bone.

I also prefer the 130 SP flat base over the 140 btsp. The 130's have been the more accurate of the two for me.

My M70FW shoots the 130 Interlock (flat base) best, but my Ruger M77 prefers the 140 Interlock (BTSP), here is my load:
W-W cases
WIN WLR primer
Hornady 140 BTSP (Interlock)
57.0 grains H4831sc
Velocity ranges from 2810 fps to 2835 fps from the 22" Ruger barrel, with the Beta Master Chrony set at 10' from the muzzle.
This round shoots from 3/4" to 7/8" (three shot groups) @ 100 yards in my Ruger.

Now Bruce, you know that "slow and inaccurate load" will bounce off any of our eastern NC deer. You must be ashamed .

FWIW, I know a guy who owns an outfitting service in east NC. He has many rifles, at least a couple in 270. His 270 load is Hornady custom (non ligh mag) 140gr BTSP. He has killed more deer than I'll likely see and at distances reported that I won't quote here. Bottomline, apparently (at least on deer) the 140 BTSP is a great bullet near and far.

it was fast enough and big enough for me to bag a 6x6 bull elk a few seasons ago