Hi all. My father has recently left me an Indian Army FN. He acquired way back through the proper channels when the Indians decommisioned them and sold them off. It has been grandfathered through the new gun control laws and is still able to be fired on the range (albeit with only 5 rounds in the mag. )Upon getting the rifle, he had it rechambered to 30/06 for deer/moose hunting. I find this ammo is quite expensive for me to buy, and also unwieldy and am thinking of finding a gunsmith to rechamber yet again to .223 (5.56) , as I will only be using it at the range. (don't hunt, as I find it cruel and unnecessary in these days of butchershops and McDonalds). Anyone got any idea regarding what the rechambering entails, and how much it might cost?