Originally Posted by Sitka deer
Thompson Contenders in 45(long) Colt also shoot .410 shells and have a screw-in straightening vane (like a choke tube) to halt the twist induced by rifling. I have killed many birds with mine.
I had one of the early models with an external tube to stop the twist. It worked pretty good with the 410 but accuracy with the 45 really sucked. They improved them considerably later when they went to the internal tube.


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