I too am having a 404 jeff built on a magnum pre-64 Mod. 70 action. It is being built to shoot off-hand with express sights. If it goes to Africa, it will be used under a 100y at the big boys (or girls?). On another thread, there is a current discussion regarding scoping dangerous game rifles, in particular for use under 100y. My opinion is obviously, no. It might be okay if you manage a first shot kill, but what if Tembo or Mbogo gets pissed and comes after you? I don't want to be looking down a telescope with a live tank 10y away and headed in my direction! And remember, scopes in general did not come into general use until after WWII. The earlier African hunters managed quite well with open sights. Also, think Hemingway with his '06 with a peep sight - and he was shooting well beyond 100y.