My son and I were out at the range over the weekend. My son has a .50 cal hawkins and so do I. We were using pre-lubed tradition patches and firing .490 round balls. After firing 2 rounds each, we would clean and dry the bore. However, I noticed with my rifle the balls were getting harder and harder to ram down the barrell, despite cleaning the bore. I started adding a little T/C Butter Bore to the patch, this is when I noticed my accuracy go down the tubes. I fired 3 more rounds with poor accuracy, in fact I missed the target all together and saw the dust kick up where the round landed back near the end of the range. Our targets were 25-30 yards away. My son meanwhile did not use any Butter Bore on his patches and his accuracy held up. In addition, his rifle loaded easier than mine. I noticed he was being very liberal with the cleaning solvent on his patches when cleaning the bore. Perhaps I wasn't?
My question is, can Butter Bore reduce accuracy? And should I be more liberal with the cleaning solvent (on the patches) when cleaning the bore between rounds.