Hi, I have had problems with my Paterson revolvers with fouling making it difficult to remove the barrel for cylinder reloading. The Paterson doesn't have grooves in the arbor like on the 1851 and 1860. I tried many different lubes with little success. However, I finally found a lube that works great minimizing arbor fouling with the Paterson's, PAM.
One needs to be careful to not use vegetable lubes for rust protection. Most vegetable lubes are water miss-able that could allow rust in time. While I use PAM with my Paterson's arbor, I always use other use lubes for rust prevention.
Regards,
Richard