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.455 Webley reloads

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.455 Webley reloads

#1 Post by lamontagne0527 » Tue Dec 19, 2017 1:02 pm

Is Hodgdon Trail Boss a good powder to use inside of .455 webley reloads or is the casing just too short to get an effective charge? It would be under a 255 grain .454 bullet.

The revolver would be a Colt New Service manufactured for the British in 1916 to supplement the shortage of Webleys. I assume the colts and smith and wessons were a stronger frame since they were swing out not break action.

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Re: .455 Webley reloads

#2 Post by RWS » Wed Dec 20, 2017 6:02 am

Trail Boss will work fine if you are looking to duplicate the Mk II load in the 600-650 fps range. It's my powder of choice for reloading Mk II cases for my Webleys. Probably somewhere around 3 grains of Trail Boss ought to do it. The Colt cylinder is long enough that you can seat the bullets out a bit further to get more space in the case, if needed.

Both the S&W N-frame and the Colt New Service are considerably stronger than a break-top Webley. The New Service was chambered in .357 Magnum running pressures in excess of 35,000 psi, so theoretically you have plenty of buffer there. In my experience, the only problem with the New Service is the lack of replacement parts should something break so I would suggest going easy on the old girl.


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