307 Winchester

You may be aware that the 307 Win is just a semi-rimmed version of the 308 case, so any cartridge that was spawned from the 308 could be reproduced using the 307 case if you needed a rim, presumably to run it through a lever action.

Winchester of course, used the 307 case as parent for the 356 Win.
 
Kind of suspect that if you did anything to completely non-existent .307 Win brass, there'd be a few Winchester Big Bore owners who might do you an injury. The stuff has been discontinued by Winchester and nobody else makes it. Guy on GunBroker wants a buck each for BNIB brass.
There's no .356 Win either. Except on the assorted auction sites. 100 pcs. of .356 unfired, brass has a starting bid of $155 on Gunbroker. No bids, but it ends tonight.
 
I've never done anything with it, nor seen any wildcats in person.
But, I have seen references to it being used for 6mm cartridges (like ".243 Rimmed") and "short" variations of some of the JDJ wildcats that are based on .444 Marlin.



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T. O'Heir,

Winchester still produces .307 Win brass and loaded ammo (180 gr PP @ 2500 fps) about once a year - minus a few years during the recent '8-year-shortage'.

They just ran some last June or July, I believe it was. In October or November, I picked up 6 boxes of loaded ammo for less than I could buy the equivalent number of cases in 50-count bags of brass; and the retailer still had about 600 rounds in stock at that point.

Even if .307 Win brass did completely go the way of the Dodo, it's easy enough to form from .444 Marlin, which is easily obtained and growing in popularity. (Recently added to the catalog by Starline, even.)
 
The .307 Winchester is a terrific round for deer, with that said I have one of the early rifles built that has taken about a dozen animals. I used the Nosler 170gr Partition with Imr4895, I did purchase a few boxes of factory ammo when I picked up the rifle but hand loading for the round has been uneventful with very good results.. Usually the animals go down immediately, to bad the round didn't appeal to the average hunter. I'm getting to old to hunt now but when I was active my .307 Winchester was one of my favorite rifles to take to the woods.. William
 
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