You might want to consider using something like a Vais brake instead of concentrating on building extra heavy. I've got them on several of my rifles, up to & including a 15.25lb straight 284 built around a M700 LA with a 28" bbl. The brake allows me to see hits on steel target as close as 600yds. with a 16x scope even with heavy S175MK & B180VLD loads. Works fine shooting off a bench, but with ports all the way 'round, it throws up a lot of dirt & trash shooting prone. Still, there are lots of brakes available with only side ports to avoid the dust signature problem.
Personally (I've got three 6.5x47s and have built several Dashers), I'd go with a Dasher for 1000yd. varmint shooting, and stick with the 105 AMax. Doubt there's going to be a bullet better-suited to giving the combination of BC, accuracy, & expansion on a critter as small as a PD.
Personally (I've got three 6.5x47s and have built several Dashers), I'd go with a Dasher for 1000yd. varmint shooting, and stick with the 105 AMax. Doubt there's going to be a bullet better-suited to giving the combination of BC, accuracy, & expansion on a critter as small as a PD.