I check out YouTube all the time. From where to grease an M1A, tighten the barrel splines on an M1, or how to load clips for an Enfield. Of course there is the infamous "hang fire" video as well. Great source for all firearm info.
"...from my cold dead hands" Charlton Heston & NRA
"He which hath no stomach to this fight,/ Let him depart." Henry V
Its the size of the hole & where you put it.