I guess the point I was trying to make in my previous post is that we must keep in mind that we're talking about a Trojan. These guns were made to a standard and with very, very few exceptions, these standards were not deviated from except by special order or request. The likelyhood of 3" chambers requested for a Trojan (which was basically a hardware store gun ordered simply for stock - in the case of a 16 ga. they came in two variations, 26" or 28" with maybe a few 30" and that's about it) is extremely unlikely. That's why I said I would be surprised if factory documentation would support the 3" chambers.
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