I had a couple of them at one time... assuming you are talking about the 320-420 inlines...
There are two versions of this gun basically the same but the early versions were built in MO. and the later versions were built in Utah.
They are a plunger gun with a very long action. Basically were really decent guns of the time - bit heavy and a little nose heavy but they would shoot accurately.
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Keep on Shooting Muzzleloaders they are a Blast
Have two of them one with scope and one with fiber optic sights. The first one I bought is beautiful the second not quite so fancy they both shoot great but if you need parts your in trouble. The 209 ignition is a joke got rid of it in a hurry
austin and halleck muzzleloader
