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Posted: 10/6/2005 4:34:15 PM EDT
I tried a search for this. No luck.

Want to find a chart of something that will give cal. and then refer it to mm.

Like a 9mm is the same or close to "What cal."?.. and so on.


Thanks
Link Posted: 10/6/2005 4:45:49 PM EDT
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters
Link Posted: 10/6/2005 4:54:28 PM EDT
9mm is .355.

1 inch is 25.4mm


There is no .380" bullet. .380s fire the same bullets as 9mm/.355".
Link Posted: 10/7/2005 5:06:05 AM EDT
Thanks guys for your input. Now I will try and get this into my head.
Link Posted: 10/7/2005 7:07:53 AM EDT
7.62mm = .30cal
5.56mm = .223cal
Link Posted: 10/7/2005 7:40:02 AM EDT
Link Posted: 10/7/2005 7:59:49 AM EDT

Quoted:
9mm = .357 cal (actual diameter is .355)
9.02mm = .380 cal (actual diameter is .355, 9mm Makarov is 9.2mm, which is why you can't reload .380 or 9x19 bullets in 9mm Mak cases)
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters (11.43mm)
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Quoted:
7.62mm = .308cal (same as 7.62x51, 7.62x39 actually uses .311 bullets, same as the .303 British)
5.56mm = .223cal





Link Posted: 10/7/2005 8:11:15 AM EDT

Many Thanks Again to the ones that have replied. Very good input.
Link Posted: 10/7/2005 10:54:28 AM EDT
then there are the calibers that are misnomers.  for example the modern .44 is really .43 (even .444marlin) and .222rem is actually larger than .223rem.  and what is often referred to as 8mm mauser is really 7.92mm.  .38spl is really .357 in diameter and even though 9mm is .355 it can still be fired through the same barrel as .357mag or .38spl--as in the ruger blackhawk convertable.

unfortunately the cartridge dimensional drawings on reloadbench.com are currently offline.  they are working on getting them redrawn using cad.  hopefully they will be up by the end of the year.
Link Posted: 10/7/2005 11:00:55 AM EDT
.38-40 = .400-.401
.44-40 = .427-.429
,41 colt = .38x IIRC
.41 mag = .410 (the only one where the name = the caliber exactly)
Link Posted: 10/7/2005 11:46:12 AM EDT

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  
Link Posted: 10/7/2005 1:37:48 PM EDT

Quoted:

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  



Make it a SP/HE combo
Link Posted: 10/7/2005 2:14:16 PM EDT
Try mm divided by 25.4= caliber.  Viseversa for cal to milimeter conversion.  See below.  Now you'll never forget.

9mm divided by 25.4 = 0.354cal.

.30 in. (caliber) multiplied by 25.4= 7.62mm
Link Posted: 10/7/2005 5:23:15 PM EDT
mm times 4 = caliber is what I use. Close enough for govt work!  

9mm x 4 = 36, i.e. .35 caliber
11mm x 4 = 44 cal
etc.
Link Posted: 10/7/2005 11:03:31 PM EDT
The metric system rox.  The whole world can't be wrong, huh???
Link Posted: 10/7/2005 11:36:07 PM EDT

Quoted:
The metric system rox.  The whole world can't be wrong, huh???


No, just the French.

Link Posted: 10/8/2005 8:11:20 PM EDT

Quoted:

Quoted:

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  



Make it a SP/HE combo




Now your talking!
Link Posted: 10/9/2005 10:19:19 AM EDT

Quoted:

Quoted:

Quoted:

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  



Make it a SP/HE combo hr



Now your talking!hr


not to be a complete ass but the 1911 isn't even an inch thick so its gonna look pretty funny with a 1" diameter barrel on it?
Link Posted: 10/9/2005 10:31:01 AM EDT
Link Posted: 10/9/2005 5:46:11 PM EDT

Quoted:
In the case of the .38SPC it used to be a .38" bullet back in the old days.



From what I understand when they used a heeled bullet like the .22 LR uses.  In theory this would mean if you measured the exterior of the .38 Special case it should measure .38 roughly.  I haven't checked this out for real.
Link Posted: 10/9/2005 6:00:22 PM EDT

Quoted:
In the case of the .38SPC it used to be a .38" bullet back in the old days.


Huh?


I thought .38 Special was always .38 special.

FWIW, 38-40 is actually a 10mm/.40 cal.
Link Posted: 10/9/2005 6:16:47 PM EDT
Link Posted: 10/9/2005 7:45:02 PM EDT
thats also why the .44mag is really .43.  when the .44 was created in the 1870s? it was actually .44 and the cartridge looked similar, but larger, to the .22lr.  but the russians had a step in the cylinders for their revolvers and when we brought the .44rus over it was smaller than the domestic .44's but it got the name somehow.  i can't remember how though.
Link Posted: 10/9/2005 7:49:44 PM EDT
.44 mag is nominally .429 with jacketed bullets, although lead ones run over.

I have no clue about heeled bullets. Its news to me and very interesting.
Link Posted: 10/10/2005 3:01:57 AM EDT

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  



Make it a SP/HE combo




Now your talking!



not to be a complete ass but the 1911 isn't even an inch thick so its gonna look pretty funny with a 1" diameter barrel on it?





We will just put a beefy slide on it and make the frame a little wider too. Nitro for the propelant will probably work.
Link Posted: 10/10/2005 7:53:03 AM EDT

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  



Make it a SP/HE combo




Now your talking!



not to be a complete ass but the 1911 isn't even an inch thick so its gonna look pretty funny with a 1" diameter barrel on it?





We will just put a beefy slide on it and make the frame a little wider too. Nitro for the propelant will probably work.



and i am sure recoil will be on the mild side.
Link Posted: 10/11/2005 11:41:04 AM EDT
Yes, I will also design a glove with heavy springs on the out side of the wrists.
Link Posted: 10/11/2005 10:02:00 PM EDT

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  



Make it a SP/HE combo




Now your talking!



not to be a complete ass but the 1911 isn't even an inch thick so its gonna look pretty funny with a 1" diameter barrel on it?





We will just put a beefy slide on it and make the frame a little wider too. Nitro for the propelant will probably work.



Like .50 GI, just...bigger
Link Posted: 10/11/2005 10:03:04 PM EDT

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:

Quoted:
9mm = .357 cal
9.5mm = .380 cal
10mm = .400 cal
5.7mm = .220 cal
.45 = .45... nothing else matters
1 inch = 25.6 mm

everything is based on the conversion from inches to millimeters




Do they make that 1inch or 25.6mm in a Glock or 1911 frame!? LOL That would end the "What is the best man stopper "debate for sure especialy if it came in a balistic tip.  



Make it a SP/HE combo




Now your talking!



not to be a complete ass but the 1911 isn't even an inch thick so its gonna look pretty funny with a 1" diameter barrel on it?





We will just put a beefy slide on it and make the frame a little wider too. Nitro for the propelant will probably work.



and i am sure recoil will be on the mild side.



Depends on how heavy it's loaded
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