Reloading for .455 Webley


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Kaeto
October 13, 2011, 12:41 AM
What would be a good powder to use in a .455 Webley using either .45 acp or .45 auto rim cases and .454 dia 255 grain round nose flat point lead projectiles? My manual says Nobelpis 2 or 3 , but I never heard of that brand.

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MagicD
October 13, 2011, 12:47 AM
Had good luck with Unique.
Careful loads for this round are significantly less than .45 ACP

5.7Man
October 13, 2011, 10:14 PM
I don't think 45ACP or Rim brass will work. As far as loading data goes I loaded for a 455 that I had a few years ago. I used Bulk Remington 255 Grain lead bullets that Midway sells I think they were .454 cal. I can't remember what powder/ data I used. 455 Webley is not loaded to 45ACP levels!

Curator
October 13, 2011, 11:37 PM
I use Unique (5 grains) with the Lee 452-255 FP lead bullet loaded in .45Auto-rim brass in My Webley MkIV from 1902. I have often regretted allowing my father shave the cylinder so he could use .45ACP cartridges when the Dominion .455 Webley ammo was no longer available. Still, if I keep pressures in the 12,000psi range the gun doesn't seem to mind.

Kaeto
October 13, 2011, 11:50 PM
Mine is a Mk VI and the cylinder has been shaved for .45 acp with moon clips. I plan on loading the acp brass to Webley levels. Which according to Modern Reloading is a max of 5.4 grains. When Numrich has them back in stock if they ever do I might get a replacement cylinder.

SlamFire1
October 14, 2011, 12:59 PM
I would use 3.5 grains Bullseye and live with it. I tried one of those Elmer Keith loads, a 6.5 grains Unique, and it stretched the top strap. I had to use an anvil and hammer to straighten the thing back to useable shape.

That told me I ought to be using the lightest charge possible. 3.5 grains bullseye functioned the pistol and shot to point of aim. I would not use 4.0 grains though it is there for a reference.


455 Webley MkVI rechambered 45ACP
manufactured Enfield 1923

255 LSWC (.454) 3.5 grs Bullseye thrown, R-P AR cases, CCI300 primers
Jun-Aug 02 T = ? F
Ave Vel = 541
Std Dev = 10
ES = 42.44
Low = 522
High = 565
N = 24
Shot to point of aim 25.0 yards

255 LSWC (.454) 4.0 grs Bullseye thrown, R-P AR cases, CCI300 primers
20-Jan-02 T = 42 F
Ave Vel = 640
Std Dev = 21
ES = 79.1
Low = 586
High = 665
N = 12
Shot to point of aim 25.0 yards

250 LRN (.454) 6.5 grs Unique thrown, R-P Auto Rim cases, CCI300 primers
20-Jan-02 T = 44 F
Ave Vel = 801
Std Dev = 21
ES = 79.2
Low = 776
High = 855
N = 12
2 O'C hold kept them all on target, medium recoil
Way too hot, excessive latch lift, topstrap stretched!

rodinal220
October 14, 2011, 01:46 PM
Most MKVIs in the USA have been cut to accept 45acp and not the original 455 round.The Brit round has a maximum chamber pressure of 13200psi in a Mark VI gun.Earlier MKs were black powder loaded 455 rounds.The American 45acp has a SAAMI spec of 21000psi,shooting 45acp out of a Webley MKVI is UNSAFE.
Load your 45acp or AR rounds to 455 specs and be nice to your old warhorse.MKV 265gr lead bullet rounds had a velocity of about 600fps

Kaeto
October 14, 2011, 07:21 PM
rodinal220 that's exactly what I plan on doing I just needed to know what was an equivalent powder to Nobelpis 2 or Nobelpis 3, because that it the powder type specified in Richard Lee's Modern Reloading.

GCBurner
October 14, 2011, 07:38 PM
According to this burn rate chart, http://www.reloadersnest.com/burnrates.asp , Nobel Pistol No. 3 is slightly slower than Bullseye, but faster than Red Dot.
It's made in France now, under the Nobel Sport brand name.

Kaeto
October 14, 2011, 08:09 PM
Now this is just the info I needed.

Kosh75287
October 14, 2011, 09:28 PM
The really cool thing about large bore revolver cartridges intended for personal defense is that the projectile needn't be pushed especially fast to be quite effective. A projectile weighing 200 grains or more, launched at 600 f/s or more is probably PLENTY strong enough to drop an Ork, unless they're wearing body armor or standing behind a substantial barricade.

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