Your thesis has two problems: 1. The 338 Win mag you mentioned earlier doesn't move 250 grain bullets nearly as fast as a 270 does 130's. 2. You fail to take bullet construction into account. The 338, 250 grain GK is built tougher than the 270, 130 grain GK and won't upset nearly as much in the relative light resistance of a deer chest cavity.
You're totally correct. The .338 win mag is only going 2750 fps and .270 is going 3000 -3100 fps. And because the GK 250 grain bullet is built stronger because it doesn't go as fast. That's what you're saying correct? The GK .338 bullets traveling at slower speed are built stronger than bullets traveling at higher speeds. I'm no expert on this particular question but if I were Sierra I would be building the faster moving bullet harder than slower moving bullets. But hey what the he!! do I know.
And I'm sure you're correct if you're saying that the .270 GK in 130 grain bullets are way more devastating on whitetail than a .338 win mag GK 250 grain bullet I"m sure you're correct on that.
Hey Southtexas I'm not sure where I got that load data that launches a 250 gr bullet and 3000-3100 fps. Maybe I didn't even post anything like. Maybe I was inferring that the .338 win mag 250 grain bullet is close to a .270 150 grain bullet. 150 fps maybe 200. But isn't that nit picking a little as it's only about a 7% difference in speed.
