Hagler450Ex, I agree, more people should take and hunt with their 577's, it is indeed a very specialized cartridge that takes an awful amount of self control to shoot well, and the physicality to carry it all day, I can do both, am basically lazy, but can work harden train getting ready for Safari, my Wife is a perfect example, she has a commercial grade TRUE treadmill out in the den, 15% incline walking just 3MPH for a mile and a half will work your sack in the dirt ; ]
The two SA PH's I've previously hunted with three times will see the 577 in action, I will bring it along with the 303 British double for a walk and stalk all game Safari maybe in 2027-28.
SStomcat, the Holland being 3lbs lighter will make all things easier, especially if we are at 10-15 miles per day on elephant, I have no doubts about the performance of the 450gr Northfork flat nosed solids departing at 2220 fps, they will go deep and straight.
cwickgo9, The 577 is indeed a Boss Buffalo rifle, man it lays a lick on them, a 750gr TSX to the last left side rib of an old Dugga boy at 18 yards in a dry Tanzanian river bed had that great bull doing his death bellow before he had fully fallen down on his right side, the skinners handed me that bullet from his right shoulder, that rumen sack bullet blocker we've heard about is a non issue with an inch and a half saw blade slicing through at 2076 fps, I believe momentum is the easiest of the physics scales to field, it is simply mass in motion, that is a very real thing.
Same for what they later told me was a Rowland Ward hippo bull, dry ground Tanzania, face in grass, broadside at 22 yards, one 750gr TSx slammed that bull so hard in the shoulders he dropped stone dead, I heard that giant hit the ground he dropped so fast.
Could hunt buffalo with the 577 double the rest of my days.