I ended up buying the single-shot Crosman (rifled barrel) I mentioned in the first post and I've been shooting it indoors at 25 feet using Crosman wadcutter pellets. I've been very happy with the accuracy of the combination. When focused, I can usually put 3 or 4 of 5 shots into a one inch circle using the standard BE stance. The relative size of that circle is smaller than the outdoor 10 ring at 25 yards and the 8 ring at 50 yards. I'd be very happy to shoot 8 or higher on 80% of my shots at 50 yards, lately I've been averaging in the low 70s using iron sights.
Whether or not it helps my SF scores remains to be seen, but I'm happy to be able to do what I consider constructive shooting on an almost daily basis with this setup for considerably less than $100 delivered (including a pellet trap).
Last edited by spacecoast; May 7, 2011 at 01:15 PM.