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P Flados · December 19, 2019, 11:20 PM

9mm does not meet the Iowa rules (see below).

Center-fired straight-walled rimless cartridges chambered for handgun use with bullets from 0.357" to .500" diameter and a case length from 0.850" to 1.800"

Center-fired straight-walled rimmed cartridges chambered for handgun use with bullets from 0.357" to 0.500" diameter with a case length from 1.285" to 1.800"

In addition to the rules, they have a list that includes:

.357 Magnum
.357 Maximum
.38 Super

Note that the bullet / bore of the 350L is not much different than the 38 Super.

Building an AR pistol set up to run hot 38 supers could be interesting for someone expecting close range shots.

December 19, 2019, 11:20 PM	#107
P Flados Senior Member Join Date: January 8, 2017 Location: Wilmington NC Posts: 243	9mm does not meet the Iowa rules (see below). Center-fired straight-walled rimless cartridges chambered for handgun use with bullets from 0.357" to .500" diameter and a case length from 0.850" to 1.800" Center-fired straight-walled rimmed cartridges chambered for handgun use with bullets from 0.357" to 0.500" diameter with a case length from 1.285" to 1.800" In addition to the rules, they have a list that includes: .357 Magnum .357 Maximum .38 Super Note that the bullet / bore of the 350L is not much different than the 38 Super. Building an AR pistol set up to run hot 38 supers could be interesting for someone expecting close range shots. Last edited by P Flados; December 19, 2019 at 11:33 PM.