Roller Muzzle Layout
This is a quick post about some common mistakes that can occur if you aren't careful when laying out a muzzle on a wood rollergun. Ask me how I know! Depending on the hardware you decide to use some of what I will talk about here may not apply so keep that in mind. To date I have built two double rollers five single rollers three roller hole guns and one inverted rollergun. Of those eleven guns the ones that performed the best all had open tracks. I'm not sure why but the open track guns all shot more predictably with better accuracy and with a flatter shaft trajectory. These guns all had a "deep open track." Parts I use at the...