You asked if I reccomend two different bullet weights. -- I'd love to sell you two molds and having several would give you many hours of fun playing with your rifle. But, I don't reccomend more than one for lever guns, as all the lever rifles I've had have changed point of impact quite dramatically with any change in bullet weight or velocity.
The LCFN is the best bullet I have for this rifle, as all the chamber slugs I've seen to date proove that the throat is too short to allow chambering of the longest bullet the action will handle unless the nose is quite long.
As for weight. Send me a chamber slug and I'll cut you an LCFN with bearing length enough to fill the case neck and throat. Whatever that weight is, it will be the best HEAVY WEIGHT for your particular rifle. If you want a lighter bullet, the LFN would be best, cut to the weight you want. Plan on crimping with a Lee factory crimp die, or loading compressed loads and not crimping. Or load only one or two in the magazine, no crimp, so bullets don't get jambed deeper into the case from slamming in the magazine due to recoil.