RE: lightweight conicals...
Just remember it is a fast twist rifle and the lighter conicals may not shoot as well as bigger ones or sabots for that matter. My shooting partner has one that he only shoots the heavy conicals in, but, uses a reduced powder load of only 80g so the recoil is not that bad.
The rate of twist is the same as my Scout and I like a 250g-300g .429 bullets with mag sabots in that rifle with 90g of T7.