You'd have to ask Tim to know for sure, but I remember a post by him once saying that you may see guns for sale that claim to be "steroided" because they have some of his steroid parts but if the work wasn't done by him then it's not steroided.
Just make sure you send him an accurate gun, steroiding won't make it any more accurate. If you buy a gun from Tim, have it shipped to you first to check accuracy, that way it can probably be returned to Crosman if it is a scattergun. Regards, Tom
Called Tim and had a great conversation.Talked about how the quality of these Benjamin guns are not what they used to be, and if you hear anything strange going on or roughness.... stop... and send the gun to him ! Said the steroid mod is more than just parts, itís what he does the the insides of the gun that make it perform 24-30 fpe depending on the things that are done !!!!! That turns your 392 into a gun that will last a lifetime and perform at more than peak performance :-)I just got my 392, Mac1 mount, rings and installed the butt stock pouch.... will send a pic after supper in another post .... Scope arrives Tuesday. wll
My steroided gun will make 30 fpe on ten pumps . Not sure what was done as I bought it used but it is way more powerful than a friends stocker .
My bad , I went through my notebook with all of my chrony tests . I hit 655 fps with 31 grain BBT bullets with 14 pumps . Not the 10 pumps I thought. Just to confirm I just ran a test with 5,7,10,12 and 14 pumps using the 31 gr BBT bullets . 5=4757=56410=58312=61814=709 At 14 pumps the gun starts to retain air ,not a lot but enough to push a pellet out of the bore . Safe to say this rifle puts out over 30FPE . Iíve been thinking of adding a small reservoir to get a follow up shot or two. Iíd hate to mess this one up , sheís a real good shooter . Iíll try with some JBS 25 grainers to see what it does , it really likes heavier weight projectiles .
I purchased a "new model" Steriod 392 from Tim a few years back and have been very pleased with it. Attached is a chrony list with different pellets and pumps.