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The Woodward Automatic was built for black powder cartridges. I would not have barrels made for a high intensity cartridge. The .450NE was among the highest pressure of the NE rounds at 17 tons. Yet the .375 Flanged Magnum even surpasses that with its proof pressure of 18 tons. Compare that to the typical black powder proof of 10 tons.

Yes I have a Woodward Automatic chambered for the .450/400 3-1/4" BPE. Yes it did pass nitro proof at some point in the late 20's or early 30's. Does that make my rifle a .450/400 NE? NOT FOR ME!

Link to my rifle: Woodward Automatic


Your idea in regard to your Woodward Automatic is misguided. I advise against it. What I haven't explored is how your rifle got to be chambered in .300 Flanged. That's already across the line, but another story.

Curl

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Wow that is one very nice rifle CC!
No wonder you want to use as BP only. Original Nitro loads was between 16.5 & 17.5 tons!
A note to consider mate however is in Graeme Wright's book his load that was pressure tested in England using 400grain Woodleighs & IMR4831 was under 11 tons for 2070fps!
He didn't have any NFB or BP loads for that round but some original BP loads for the 450 x3 1/4 were up to 12 ton!
Enjoy your new baby!

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