Originally Posted by Virginian
That explains a lot; I disagree with Randy on a bunch of stuff. He does shoot a lot of different guns and he definitely has an opinion. I did a LOT of pattern work myself with barrels and chokes and such, and I found that lengthening forcing cones and overboring can improve patterns (whether the cost benefit ratio suits you is another matter), and that overboring can lead to higher velocities, with the right loads.
Ammo manufacturers cut corners every way they can. I am sure you can remember the federal series of ammo that was named after the game it was intended hunt, duck and pheasant, dove and quail etc. That series of ammo was the cheapest ammo on the shelf. Yet the cheap federal ammo had enough antimony for 8 shot to hold it's shape.
Fiocchi is the only bargain factory ammo that has a quality wad and shot. To make a profit Fiocchi uses the crappiest hulls that have ever been manufactured, even the old paper hulls are better.
If your testing was done several years ago or with reloaded ammo you might want to reevaluate your tests in regards to your ammo/component choices.