I'm considering trading my Enfield #5 Jungle Carbine for a custom made rifle in 8mm. Gonna take another look at it to see what brand name it is and also what kind of scope is on it. My question is should I trade my Enfield #5 for this rifle? I'm asking because I have noticed the "wandering zero" w/the Enfield, is it worth keeping? What caliber would be recommended for deer, .303 British or 8mm? Any thoughts would be appreciated...thanks.