It is a very good calibre for pigs!
I drilled a good sized boar on the run at 30m or so & wondered why I him so far back?
I didn't know that I hit a 7" round gum about 5m or so closer, the bullet smashed off a 4" portion of the tree itself before hitting the boars kidney area & broke its back - it wasn't going anywhere after that!
Another pig I shot on the same day was in excess of 100kgs quartering front on diagonally through, again a spine shot & he was down, anchored well & truly.
Yes both needed a finisher.
My load is 46gn AR2208 (Varget) Remington cases, Federal 210 primer with Speer 150gn spire points/flat base. Sierra equivalent projectile shoots to the same point of aim in my old P14 Winchester.

This load has been chronographed at just under 2700fps with less the 10 fps deviation.
A note of caution must be applied here if using in a SMLE as this would be generally considered too hot & safe only in my rifle.
Can't go wrong with an old .303!