Here is picture of our NEF 12ga FH with Hogue Compstock. It has the recoiling cam and springs in the hollow butt plus some weght,
Here is a variety of slugs and bullets that fit in a 12ga dangerous game slug, lock on sabot. BPI sells it
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There is couple 585 videos on Swann Gunsmithing's Facebook site; Of our 585HE in first Ruger #1, that was done in Australia.It was set up for the poster Tankhunter on the AR big bore forums. That gun killed the first AUS buff, killed by a 585HE, that I posted picture of above. You can go direct to the page and click on the videos to watch the test firings..
Here is picture our 585HE in a Montana PH action in a MPI stock, with the style of a CZ stock and metal will be finished with a Gun Kote finish.
Here is picture of a 585HE we did in a Mauser 98 as a singleshot test gun. We used a composite stock we adapted to fit action. Weighted to 12 lbs. Enfield in back, you can see it is longer.
And speaking of singleshots a fellow in the Yukon is just finishing up 585 Ruger #1...And the 24hr Campfire forum has over a million views of this thread...ED