I've only seen two with a push button safety for hunting. So in the field the gun would have to be carried with the lever popped open. I own a 300H&H litterly unfired. It has a half round -half octagon barrel. But it to has no safety and double set triggers. I'll post some pics of the big bore Haucks that I have or have had. Including a 45-70 single trigger and a 375 H&H