Webley Mk1 45 Colt ammo question ?

[GrantR]

Assuming this revolver has had the rear face of its cylinder "shaved" to accept .45ACP in moon clips (the most likely scenario) you may want to consider getting .45 Auto Rim brass for your loading, to avoid the hassle of using the moon clips with .45ACP cartridge cases.

The most common revolvers made for use of .45ACP cartridges in moon clips were the many US Model of 1917 revolvers (in both a Colt and a S&W model) for US military service in World War I, so the same ammunition could be used as the 1911 Colt semiautomatic pistol. The .45 Auto Rim cartridge case has quite a thick rim, duplicating the spacing of a .45ACP case in a moon clip, and was was developed after WWI so these revolvers could be used with loose ammunition ... https://en.wikipedia.org/wiki/.45_Auto_Rim

In any event, I would echo the previous cautions, already expressed in this thread, to load your cartridges to .455 power levels and avoid using any commercial/factory .45ACP loads. The standard operating pressure of the .45ACP cartridge EXCEEDS the proof load of the British .455 service cartridge!

 

[tokguy]

I don't like black powder. I use Trailboss now with good results in my antiques.

Cheers
Moe

I did not know this til someone told me...apparently TB curve is hot.
Funny, because I've always found it to offer softer recoil. But many nay nay its usage it charcoal burners

 

[Moe]

I did not know this til someone told me...apparently TB curve is hot.
Funny, because I've always found it to offer softer recoil. But many nay nay its usage it charcoal burners

The secret to TB is you can load very light loads without fear of squibs. Yes if you fill the case the pressures would be not good but in a light load it's fine.

Cheers
Moe

 

[tokguy]

The secret to TB is you can load very light loads without fear of squibs. Yes if you fill the case the pressures would be not good but in a light load it's fine.

Cheers
Moe

Someone on here said it's position sensitive too... which is debatable of course. I like TB, was surprised it has this rep.

 

[Moe]

Someone on here said it's position sensitive too... which is debatable of course. I like TB, was surprised it has this rep.

In my experience with 70% of case space (-projectile) filled with TB my velocity was consistent +-40 fps in 455 Webley Mk2, and +-50 fps in 8mm French ordnance and 38 Special while remaining about 10% below expected black powder velocities. YMMV but very safe and consistent in my experience. Used in all my antiques for the last few years and no squibs.

Cheers
Moe

 

[DEZ]

Blue dot when loaded to same velocity as black powder produces a similar pressure curve but is hard to ignite needs heavy bullets and a good crimp

 

[cooey43]

Ive got this Webley Mk1 marked Colt 45 just wondering if someone with experience in the matter could point me out on the right factory ammo to use without destroying the pistol, thanks in advance, cheers

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I own several Webleys & the 3 Hardcover Webley books. I shoot them all. Some Webleys where made with BOTH .455 & .45 LONG.
stamped on them. The long firing pin allows both to be shot. I load .45 long colt with 8 gr. of unique & a 200 gr. lead bullet.
Suggest you start lower & work up slowly.