Bought 1800 of those 87 grain SP's at a gun store closing out years ago (for $5.99 box). Very decisive (and destructive) on the 20-25 coyotes we shot with them. Shot a few hundred prairie dogs with them as well, but had to watch barrel temps closely. They are all gone now, years ago.
Very accurate in the Remington 25-06........but don't know why anyone would want to go after any sort of big game with them....even Roy.
A bullet that gets lost in the latest and greatest shuffle is the 87gn Hornady.
It was Roy E Weatherby's favorite and I used it on Fallow, goats and pigs in a .257 Weatherby and it did work very well.
Also tried it in my .25/06 and would definitely consider it for White Tail sized game.
In the Weatherby, I loaded it to 3800fps and in the '06, up to 3600fos in my 26" barrel.
JW