I highly recommend an aperature (peep) sight. You can't go wrong with the Williams Fool Proof, but Lyman also makes a model that fits the same holes in the rifle.
When a person gets experience with peep sights he/she never wants to go back to open, iron sights. The peep is more accurate and faster to get on with, as the eye looks through the hole, but doesn't see it! I like a blade front sight, sighted to hit right on the top of the blade.
For hunting you unscrew the insert from the aperature and leave it out. Throw the rifle to your shoulder, the eye looks through the hole, automatically, and just sees the front sight. put the top of the blade on what you want to hit, and let fly. Both eys should be left open. Thus, on long, deliberate shots where elevation is required, you cover the target with the blade, but having both eyes open, the target is easily seen, "right through" the front sight.
Eagleye, on these threads, and myself, are two people who have each done a fair bit of competetive shooting with 30-30, model 94s, with aperature sights, where shooting was to 300 yards. Each of us have a fair number of trophies won at these events.
Here is a Williams FP on a Marlin 44 mag. The disc is removed, for a wide open view.
