If ports are not the right size for all components it will damage brass.

So an adjustable one is the same as carrier weights, and all kinds of other band aids to get the thing working right.

Then there is the issue that some folks only want 125 grain bullets going balls to the wall, and others want heavy bullets moving otu decently. None of that says same port size. Toss in burning rates of powder and who konws.

Now if you go standard ammo with standard bullets per the port design, it doesn't matter

We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....