I had a customer that plugged the bore of his T/C Contender 14", 44 Mag barrel on the chamber end and filled it up with Hoppes #9. 5-6hrs later some of the solvent had apparently evaporated and the muzzle end was heavily pitted. It was pitted so bad, that 2" was cut from the muzzle end and the barrel recrowned, and the front site remounted. Plugging 1 end of a barrel and filling it with any solvent is a dumb idea! I don't have any Hoppes in my shop. I use Wipe-Out unless I have a barrel come in that is very heavily coppered and then out comes the Sweets. The OP of this thread really doesn't need a 'solvent', all he needs is to wipe the inside good and make sure its dry before firing it,,,, its a new barrel. But, later after he does need a solvent I would NOT recommend Hoppes, horse ****$ might be better! I'd choose one of the others and follow the directions. I say this with 30yrs of bench experience. I even bothered to graduate from MCCs 2 yr gunsmithing program, and at the top of my class I might add. I see more firearms that people have done stupid things to in a month than most see in their life time!