The 410er tube pictured was their improved model.( Featherweight ). Steel chamber and aluminum barrel. I have savage 410er tubes in all gauges. 12, 16, and 20 ga.. Have used them frequently in various guns. Many years ago I had called Savage to speak to them about chamber pressures. I was told they are manufactured that the 410'er chamber will withstand normal chamber pressure alone. I only encountered 2 problems with them. (1) I could not get one that would insert more than halfway into a FOX SXS. (2) is shown in you above picture where the insert jumps the ejector/extractor. In actual use the insert sits too far into the chamber.
Doubt the action will close properly as the extractor will be blocked. If it does close primer hits maybe too light to detonate. If it does fire the 410er extractor was not activated.
Last edited by 1straightshot; 03/11/23 12:48 PM.
