.455 Webley Loads Using 45 AR Brass
I have a 1916 Webley Mk VI which was converted (countersunk chambers, not shaved) for 45 Auto Rim. I've been scouring multiple fora on the subject of handloading for this revolver. It is the main reason I am about to start hand loading; that and the fact that I also have a .38 Mk IV Webley.
Along with the 45 AR cases I will be using original style 265 grain HBRN .455 cast bullets. For simplicity I have focused on Unique as the powder of choice and would like to approach but not exceed original bore pressures and velocities.
Reloaders on all of the many blogs I have viewed, using the same components, swear by a range of amounts of Unique powder for their loads; anywhere from 4.0 (sometimes less) to 5.0 grains (rarely more), with the latter seeming to be more common. I'm leaning toward working up to 5.0 grains.
Would appreciate any experience and reinforcement as to a good "sweet spot" amount of Unique to use. Thanks.
Now if only large primers would show up on the market again....!