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Old May 11, 2013, 12:28 PM   #1
Swampman1
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.223 vs .224

Noob question, why are there some listings as .223 and some .224, some 451 and some .452, .355 and .356 etc? Is it a manufacturer thing? Is it basically the same bullet?
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Old May 11, 2013, 12:57 PM   #2
PA-Joe
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223 winchester is the name of the round and it uses a .224 bullet. Some of the first 223's used 0.223 bullets but then they standardized on the 0.224.

Also if you are using lead bullets they are normally 0.001 larger in diamter than your barrel.

0.451 are used in 45 ACP and the 0.452 are used in 45 colt 0.458 are used in the 45-70 rifle rounds.

The 0.355 is normally a jacketed 9mm I see the 0.356 listed as an Action Pisol Round which uses a softer bullet more like lead.
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Old May 11, 2013, 11:33 PM   #3
Colorado Redneck
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There are bullets of both calibers---.223 and .224

http://www.midwayusa.com/product/666...int-box-of-100

http://www.midwayusa.com/product/556...int-box-of-100

I had a 22 Hornet and tried the .223 caliber Sierra, which is supposedly made just for the Hornet, and it didn't shoot for beans. .224 caliber bullets worked great.

So to clarify this, when talking about specific cartridges, there is the .221 Fireball, .222 Remington, .223 Remington, 22-250, 220 Swift, etc.

To make this even muddier, all of them shoot .224 caliber bullets.
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Old May 12, 2013, 12:23 AM   #4
Silver00LT
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There is no noob question....I personally rather see someone ask a question than make a mistake...especially in this hobby.

I had the same question...downloaded a few PDFs and saw what .223 Rem bullet heads diameter were.
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Old May 12, 2013, 07:17 AM   #5
Bart B.
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Note that the 9mm Luger, .357 Mag. and .38 Special handguns all shoot 35 caliber bullets. And each uses slightly different diameter bullets.

Silver00LT, what are ".223 Rem bullet heads?" I'm not familiar with that term.
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Old May 12, 2013, 07:33 AM   #6
Nathan
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Quote:
Note that the 9mm Luger, .357 Mag. and .38 Special handguns all shoot 35 caliber bullets. And each uses slightly different diameter bullets.
This is one I wish would have been standardized. Really, we need .356 and .358 bullets?!

Even though 45 Auto and 45 LC are listed as .451 and .452 respectively, my experience say interchangeable. My 45 LC groove dia is .4505." I use .452 normally due to weights. Hard to buy 265 gr .451 bullets and I rarely want to run 230 gr bullets in my 45 LC.
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Old May 12, 2013, 09:40 AM   #7
Swampman1
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Thanks for the info guys..I'm beginning to understand. Here's another example adding to the confusion however.

http://www.midwayusa.com/product/116...d-hollow-point

So, with these for example(as PAJoe pointed out), can you use the recipe for a .355 bullet being there is so little difference?

Last edited by Swampman1; May 12, 2013 at 09:50 AM.
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Old May 12, 2013, 10:20 PM   #8
Silver00LT
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Bart B - .223 Rem is the cartridge, but the bullet is .224. I was confused as the OP until I downloaded the PDFs with the breakdown of the .223 Remington and it showed the specs of the bullet. That way I purchased the correct diameter bullets. Head is another term used for bullet. A lot of people refer to completed cartridges as bullets. Thankfully those are few and far between on this forum.
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Old May 16, 2013, 07:59 AM   #9
Swampman1
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OK does the same apply for the 44 magnum in .429 and .430? And when would you use either one?
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