.45 ACP case dimensions

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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
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Forum rules
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.

Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
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Sim G
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Re: .45 ACP case dimensions

#11 Post by Sim G »

With the relative scarcity of .45ACP in the UK today, to get any sort of meaningful results may be a bridge too far.
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Re: .45 ACP case dimensions

#12 Post by M41B »

Found some 45 ACP in the garage and had a quick measure up for you....

Case rim in mm Federal - 12.014mm, 12.0396mm, 12.0396mm, 12.0396mm, 12.065mm. Average 12.0396mm diameter
Winchester - 12.090mm, 12.0396mm, 12.065mm, 12.0396mm, 12.065mm. Average 12.05992mm diameter
CBC - 12.014mm (sorry, I could only find one)

All the above cases were brand new and unfired.
Measured in Imperial with Moore and Wright Micrometer and then converted to metric....

Hope this helps.

Mat
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Re: .45 ACP case dimensions

#13 Post by meles meles »

Indeed it does, ooman, indeed it does. Quite a variation in size between just those few brands.
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Re: .45 ACP case dimensions

#14 Post by M41B »

Yes. I was suprised too and had to re-check them to make sure. If there is anything else you need let me know.
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Mat
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Re: .45 ACP case dimensions

#15 Post by ovenpaa »

Hmm.. a few more CBC would have been good however it does demonstrate a slightly smaller rim size with Federal which is interesting.

Thanks Mat :good:
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Re: .45 ACP case dimensions

#16 Post by meles meles »

Very interesting indeed. Small enough, ovenpaa, or do we need to shrink 'em a bit more?
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Re: .45 ACP case dimensions

#17 Post by ovenpaa »

The Federal looks like it would work....

Mat are you at the Imperial, we are there on the 12/13/14th
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Re: .45 ACP case dimensions

#18 Post by M41B »

I am on a course which finishes on the 12th. I might be able to come down on the Sunday if I can get a Pass from the Boss!!! What do yo need, can it be posted???
Mat
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Re: .45 ACP case dimensions

#19 Post by meles meles »

Come on oomans, get out there with your gauges !
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Re: .45 ACP case dimensions

#20 Post by majordisorder »

I'll drag some out tonight, got about 5 or 6 different brands I think.
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