Isn't the US transitioning from 25mm to 35mm? This has been a work in progress for a couple of years now hasn't it? So I wouldn't be surprised if there were both. Or that the transition has confused some writers.Gray_R said:Does anyone know for certain the bore width of the Bradley's Bushmaster? I've seen conflicting specs of 25 and 35mm.
Not that I know of. I just read an article that talked about the transition from A1 and A2 to A3, with increased survivability, but it didn't mention anything about a change in caliber.Isn't the US transitioning from 25mm to 35mm?
I'm not sure, but if I had to guess, I'd say aerodynamics. I know that the .50 is perhaps the most aerodynamic round ever developed. And judging by 40mm grenades, 25mm is probably more aerodynamic.rossfrb_1 said:I don't know why the US chose 35mm, when they could have gone to something as standard as 40mm. Does anyone know if the 35mm is somehow inherently ballistically superior over 40mm?
I'm honestly not too sure. I've been told that you can change a 35mm bushmaster to a 50mm one with little more than a barrel change though, which is why the choice of 35mm would make sense - its future proof.Does anyone know if the 35mm is somehow inherently ballistically superior over 40mm