All of my parts are original factory parts. The effects of giving the gun ammo it likes is more important than anything else I found to do to it. I have tested the ammo effects several times and the results are always that it likes the same bullets.
I ground off the front sight, removed the barrel band, epoxy bedded the action, smoothed the sears, radiused the bolt, put on a stock cheekpiece, and installed a regular sling swivel.
I have considered getting a replacement trigger to get a lighter pull because that is the real problem out in the field. But in the end I think if I wanted one shot kills I would just buy a bolt action target rifle.