I bought a Fullfield II last year for my wife's gun. NIce. I already had a signature series on my gun and a set of signature series binos. Burris is a good product. Go with the signature series. I know they're high but well worth it.
I have the FFII and the Signautres series. If you can afford it go with the Signatures series with Posi Loc...I have one my .338WM and in 3 years have had to make no adjustments. I hagve the FFII on my smaller bore guns and they work flawlessly. You cannot go wrong either way. Forever Guarantee!!
Anyone who shoots a sabot bullet has had the problem with loading the next round with a dirty barrel we have all struggled with it.
Between muzzleloader shots I have done some research and testing on my own to find out what works for me for the next shot. I have been using a product called bore butter and when the muzzleloader is just sitting around I leave it caked in the barrel for protection. Have also found that if I lube my sabots with bore butter they really slide nicely down the barrel....