Those are some seriously capable sevens.
.284 giants for sure.
I've never shot a .270 Weatherby. That's a beautiful rifle you have there.
15+ years back when I was hunting hardcore I was mighty fond of 7STW, 7RUM and of course, the 7mmRemMag.
I'd worked up a 7mm STW load using a 150gr Nosler Ballistic Tip that was sizzling. Any shot that presented itself was good-to-go. Even on a pass through lung shot I'd get a bigtime wound. Neck shots would drop 'em in place and no meat loss from the shoulders.
That STW was a great round. The rifle I had it chambered in was a M700 with lightweight stock. Easy to carry....but it would get your full attention on the shooting range.
I feel that Jon Sundra would have been mad at me for not getting into the 7mm08 back then, too.
As it were....the lease I hunted with the fields and clearcuts wasn't renewed and I went back to occasional hunting woods and logging roads...... .308Win, .270Win and .44mag.
Sold off those thumping sevens, but had a ball working up loads for them and seeing what could be done. Chronograph was in constant use back then. Cookin'