Absolutely. 1 to 1 1/4 ounce will be the majority of what I use in this. However, for turkey, 1 1/4 will not get me to where I want to as far as effective range. I'll see if mine is marked on the barrel. That sounds like a recommended load. We obviously can't take apart loads from muzzleloaders, unless we find one that has been loaded for 200 years. If we look way back to when cartridges first came out, and shells were brass, 10 gauge loads have been found that were as much as 2 1/2 ounces with black powder. I prefer that a manufacturer is outfront and says this gun is designed for X, but I'm sure this Pedersoli can handle any reasonable load after thinking about it.