If you are going to get into a "build" much of the appeal is lost even at a bargain purchase price.
$449 for the SS rifle.
How I see it, could get a 1:8 barrel, toss Ackely's name on it, have it screwed on, bedded into new stock (or factory), and be working around the cost of a Montana 243, but with the twisting for heavies. Yes, that gets away from the bargain price, but whats to like about a 1:10 243?
