RCBS die question

[r.j.medals2]

...Greetings
I have recently acquired some random dies and this RCBS mfg. one is stamped 300 W.BAR F.L. 74 Of course FL = full length and 74= 1974 mfg. anyone know what the 300 W.BAR means The RCBS site does not show this one so is it a wildcat or ?
Happy New Year to all my fellow Gunnutz and 'May the best of your past be the worst of your future ' [Quote from The long Kiss Goodnight ]

 

[270 totheend]

Perhaps for a Browning Automatic Rifle = small base die? And it looks like you need a new decapper pin.

 

[FortHunter]

Perhaps for a Browning Automatic Rifle = small base die? And it looks like you need a new decapper pin.

My RCBS 300Win small base dies have S.B. stamped where his are stamped BAR.
But that's what I was kind of thinking too.

 

[Raton57]

Could be for a tight chamber BAR rifle. Does a 300 WM fit in the die.

 

[kamlooky]

Perhaps for a Browning Automatic Rifle = small base die? And it looks like you need a new decapper pin.

It does look bent.

BAR?
I wonder if this is what is needed to cure Jays long lost love affair?

 

[Potashminer]

I think I would go with best guess - say 300 Win Mag (?) - lube a case and run into that die - then carefully measure with micrometer - compare that with similar brass from a "regular" 300 Win Mag die? One would hope that RCBS could ID the die that they made - but from what I read above - is not happening. So, would have to try something and see what it produces? It may not help, but an RCBS die that I have here says, on top, "RCBS 300 Win FL 83" (no "dots" or "periods")

 

[rombat]

Not sure of the source but this thread may answer your question. https://www.shootersforum.com/threads/rcbs-bar-die-set.220026/

 

[kawicrash]

RCBS may be able to help you.

 

[Dogleg]

It is marked BAR for Browning Automatic rifle. A small base die to ensure function.

It may or may not be necessary; my experience with the BAR in 300 is the chamber is big. I did use a SB die; not to make the cartridge small enough to function, but to enable the brass to be sized enough to function in other rifles.

A small base 300 Win die is a handy thing to have around though. If you take the stem out you can get a little extra squeeze on the bottom of other magnum cartridges like the 7mm REM, 264, and 257 and 270 Weatherby without touching the neck and shoulder. That can make the difference between working and not working if you happen on a supply of once fired cases, whether from a range or your own.