I am an avid clay shooter. Currently I am shooting a Compact Benelli M2 and a Browning Citori Micro Midas. Both are chambered in 20 gauge. Recently I have thought about the possibility of upland hunting. If I do this I will almost certainly go buy another over and under shotgun chambered in 12 gauge. My question is, if I take that gun to the range and decide to use Briley tubes to convert the bore into a 20 gauge, will it affect the manner in which it shoots or the accuracy?