Webley 455 reloads

[Guiseley]

Anyone have experience of reloading a Mk V with Hornady 454" semi wadcutter flat base 260gr lead cowboy bullets and Australian brass which for some reason is half an inch longer than original factory. Still fits the chamber OK but unsure of seating depth and wether just to stick to MOL as the original.
Thks.

 

[T. O'Heir]

Any brass that's half an inch longer than original factory isn't the right brass. Bertram?
There's .455 Webley load data on Handloads.com. The 265 grain data is close enough. 5 grains won't matter. Max OAL is 1.230".

 

[Clark]

I have a revolver I have hand loaded and shot that is marked "455 Eley".
This is supposed to be the same thing.
https://en.wikipedia.org/wiki/.455_Webley
http://thefiringline.com/forums/showthread.php?t=548674&highlight=eley

Here is the thread where I modified 45 Colt brass.
http://thefiringline.com/forums/showthread.php?t=536836&highlight=eley

These people are out of stock, but you can see from the pic how they make it
http://www.midwayusa.com/product/777836/bertram-reloading-brass-455-webley-box-of-20

These guys say they have the brass in stock
http://www.buffaloarms.com/455_Webley_Reloading_Brass_it-157326.aspx

 

[Guiseley]

Bertram brass

Thanks for all your help on the 455 Webley guys. I said the bertram brass was half an inch longer than the original. I meant ⅛" longer, sorry. If I seat the bullet ⅛" lower in the case it should be OK, yes, no? Also anyone have any load data for unique with the 255 grain lead bullet, min/max?

 

[Unclenick]

No. I haven't looked at a Webley chamber, but in a typical revolver that would jam the throat and prevent chambering. That's how 44 Magnum cartidges are prevented from chambering in a 44 Special by mistake. They make the Magnum case 1/8" longer. The overall length of the two cartridges is the same (well, OK, the older 44 Special is actually 0.005" longer, but that's not significant). But that's all it takes to ensure the higher pressure magnum round can't be accidentally fired in a Special chamber.

If I look up the Webley in QuickLOAD it says the .455 Mark I case is 0.886" long, while the .455 Mark II case is 0.767" long. I expect that's what you are seeing; the difference between the Mark I and Mark II cartridge designs. Whey they shortened it, I don't know. Probably for lighter revolvers as the peak pressure for the Mark II is 25% lower as well (1200 bar for the Mark I, or about 17,400 psi, vs 900 bar for the Mark II, or about 13,000 psi.

 

[Clark]

I have been shooting 6 gr Power Pistol 250 gr XTP 1.21" OAL. ~ 18kpsi 870 fps
I cut the 45 Colt brass down from 1.275" to 0.885"
I cut the rim down from 0.55 to 0.45"

 

[Clark]

More pics

Measuring the 455 chamber before making ammo to fit it:
In the chamber a 0.477" pin gauge goes 0.9" deep into the chamber.
A .447" goes 0.9" deep.
A .456" goes all the way through.