I have a J Rigby & Co in 376H&H and in 416 Nitro Express. Both are tack drivers. 
. Fun but expensive to shoot
Rigby has a rich history and its .416 holds a special place in Africa hunting. With calibers like that reloading is really the only way to go. I considered getting a .416, or maybe a .404 Jeffry, but I figured the amount of times I'll go to Africa and/or big bear hunting are few so i choose the .375 H&H, really the 3006 of Africa, and love it.
The problem was finding one. Tho Im right handed Im left eye dominant so I prefer to shoot lefty tho i can shoot either way. I found a LH M-70 down in Texas and had it shipped here. It was after Winchester decided they were going to make the old style M-70 again and boy its a beaut. I have a Leo Vari-X-lll 1.5x to 5 x on it with a quick take down mount and ghost ring iron sights. She shoots pretty well, target on left.
That was with the Swift A-frame 270 grn at about 2700 fps, I forget the exact load.
I took a huge African Eland with it after an entire day of stalking a large herd that also had many hundreds of zebras mixed in. Every time we stalked them we couldnt get within 500 yrds without them taking off. Man if you ever heard that many big animals like that stampeding, they make the earth shake. Anyway there was one huge Bull in the mix so we didnt want to quit. Eventualy I got an 80 yrd shot at him as he was running across a clearing and a 300 grn A-frame took him in the shoulder and knocked him down for a humane finisher. Ah the memories hunting gives you. I always thought the big caliber gave me an edge with 600 lb + critters tho we all know it comes down to where you put the bullet.
I envy you your Rigby's. Save it for future generations in your family.
