and it allows the choke to be larger in diameter so it can be stronger.
ya lost me there
and it allows the choke to be larger in diameter so it can be stronger.
ya lost me thereand it allows the choke to be larger in diameter so it can be stronger.
I'm not. The extra strength comes in handy when trying to get a load of shot, especially steel shot, to squeeze a narrow opening at high speed.If you are talking about pressure at the muzzle, that has dropped since the first 12" or so in the barrel.
The external choke certainly can't be any thinker than the outside diameter of the barrel, else folks shooting guns with two barrels would have issues.
If the choke is extended the OD of the choke can be equal to the OD of the barrel.
If the choke is internal the outer diameter of the choke is restricted to the inner diameter of the machined portion of the barrel. If the choke is extended the OD of the choke can be equal to the OD of the barrel. Larger diameter and same ID of the choke equals greater wall thickness right where the stress is greatest, which equals a stronger choke.
Unless you carefully pattern chokes, including: marking 30-inch, 20-inch, and 10-inch circles around the pattern; count the pellets; and look for, and mark the holes in the patterns you won't be fully aware of choke performance differences.
Simply shooting a pattern and visually evaluating it won't tell you much of anything about choke performance.
I have to disagree, big time. I was seeking an 80 yard goose gun/load combination, and I came up with two; one in 12 and another in 10 gauge. Only by statistically comparing data - and counting pellet holes - can you know if you are going the right way with changes. And before the know it all don't take long shots crowd chimes in, I practiced on high speed clay pigeons at 75 yards. My cripple rate was way below everyone else's. I liked tall shots. I was serious there for a while.Visually evaluating it will let you see any holes in the two-dimensional view, but since a pattern is a 3-D conical shape anyway, counting holes or similar is a waste of time.