If I was looking to do a BR match with an Encore--I think I would build an 8-9 twist .243 about 15 7/8 with the brake full bull buy some Tonys wood and a large forearm. Get me a 3-12 burris buy some 100-105 Berger's or SMK's some H4831SC or RL22
and make the rifle shooters feel real bad.
I shot this group with a clunky old 35 cal Encore
http://www.handgunhunt.com/photopost/showphoto.php?photo=3590This is what one will do @ 400 (376 measured)
http://www.handgunhunt.com/photopost/showphoto.php?photo=3078