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Why no 29 caliber?

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 09:50
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Since I would rather sit here and ask silly questions then finish digging down to my foundation to see where the water is coming from that is entering my basement - I'm about 6' deep and now have to use a bucket to get the dirt out because I can't through it out anymore - I was wondering why we don't have a 29 caliber.... like a .295.  Looks like there isn't a 23 caliber either.  Anybody know why that is?
 
Help fill in what I have missed.
 
.338
.325 - ?
.308
 
.284
.277  - I think
.264
.257
.243
 
.224 - I think there might be others as well
.218 - ?
.204
.17   - not sure what this is
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 09:55
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325 is 8mm-- and if you went 7.5 mm it would be the one your looking for
bigger question why is .357 a 38 special and 44 mag really only .429
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 10:02
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those two have always kind of pissed me off - why the hell did they do that!

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 10:02
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275 is .288 and 7.5 is .298
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 10:05
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There are a ton of calibres that can be added.  Naming conventions are confusing and often don't relect true calibre.  .218 Bee  - is really .22 calibre.  Old varmint pushed out of favour when the .222 came out. 
 
And then there are the variants/wildcats!  This is a book all by itself
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 10:06
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43 mag just don't sound cool enough.


Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 10:28
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38-40 is really a 40 cal....correct?   
 
I don't know why there is no 29 cal. ( 7.35mm Carcano? ).......go ahead and create one!!   Everyone will buy it and the old timers ( like you-know-who  Loco ) will say we don't need it............which we probably don't ........but who cares??  
 
Anyway..............HEY BIGDADDY!!!     Bucky


Edited by Ed Connelly - October/28/2008 at 10:31
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 10:50
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HEY ED!!!!!!!!
 
I think there is a 41 mag. I think. and also a 32 mag.
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 11:04
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38-40 - another sweetheart.  Based on the 44-40, should have meant 38 calibre, 40 grains of black powder but it is .401
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 11:05
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A 29 caliber sounds funny and would not resonate with shooters. Besides, why have a 29 when we already have the 7`s and the 30`s? A 29 would be too close to either and serve no additional purpose, other than more confusion.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 11:07
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Kind of like a .257 and a .264 or a .277 and a .284.  They are all pretty close, but the .264 and .284 have big advantages ballistically over the others just under them.  So maybe the .29 would as well.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 12:19
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anybody know how to figure out what the best grain weigth in .295 would be to get a great b.c & s.d. to make the "perfect" deer round.... kind of like the 140 grn .260?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 13:00
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It would need to be pretty heavy to make it really good.  maybe 175 to 190 grains.  Then it could be quite long and that is where you would gain the high BC and the high SD
That is why the 175 gr .284 bullet is so good.  Quite a bit longer than a .308 of the same weight which provides for the high BC and the high SD.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 19:54
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Originally posted by Tip69 Tip69 wrote:

I was wondering why we don't have a 29 caliber.... like a .295.  Anybody know why that is?
 
 
I've often wondered the same thing myself.  If you look at the distance between the caliber measurements, there is definitely a gap.
 
.243" to .257" - .014"
.257" to .264" - .007"
.264" to .277" - .013"
.277" to .284" - .007"
.284" to .308" - .024"
.308" to .323" - .015"
.323" to .338" - .015"
 
Too big a jump and right in the middle of the most useful bore diameter for most all of North American hunting.
 
I think they couldn't think of a catchy name for a .296" caliber.  Would be just right for a decent velocity from a 180 grain bullet which the 30-06 shoots too slow and the 300 win mag shoots too fast.
 
JMHO
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 20:31
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                                                                           Thinking
 
                                                                   the .29 Amígo
 
                                                                  the 7.35mm Eduardo
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 21:28
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Originally posted by sakomato sakomato wrote:

Originally posted by Tip69 Tip69 wrote:

I was wondering why we don't have a 29 caliber.... like a .295.  Anybody know why that is?
 
 
I've often wondered the same thing myself.  If you look at the distance between the caliber measurements, there is definitely a gap.
 
.243" to .257" - .014"
.257" to .264" - .007"
.264" to .277" - .013"
.277" to .284" - .007"
.284" to .308" - .024"
.308" to .323" - .015"
.323" to .338" - .015"
 
Too big a jump and right in the middle of the most useful bore diameter for most all of North American hunting.
 
I think they couldn't think of a catchy name for a .296" caliber.  Would be just right for a decent velocity from a 180 grain bullet which the 30-06 shoots too slow and the 300 win mag shoots too fast.
 
JMHO
 
.275 ross is .288  That's the the old Brit cordite empire stuff.
 
The 7.5 mm Swiss is .298.Soap%20BoxRoll%20Eyes
 
So the stuff is there...  .298-.288=.010
 
Uncle Silver has typed this extra slow this time...
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 21:30
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It is actually a .306, they just call it a 7.5
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 21:31
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Originally posted by silver silver wrote:

275 is .288 and 7.5 is .298
 
Just make sure I quote myself, I typed slow .Trust%20Me
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 21:36
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Any you can even shoot .308 bullets out of them.  
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 22:02
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Originally posted by silver silver wrote:

Originally posted by sakomato sakomato wrote:

Originally posted by Tip69 Tip69 wrote:

I was wondering why we don't have a 29 caliber.... like a .295.  Anybody know why that is?
 
 
I've often wondered the same thing myself.  If you look at the distance between the caliber measurements, there is definitely a gap.
 
.243" to .257" - .014"
.257" to .264" - .007"
.264" to .277" - .013"
.277" to .284" - .007"
.284" to .308" - .024"
.308" to .323" - .015"
.323" to .338" - .015"
 
Too big a jump and right in the middle of the most useful bore diameter for most all of North American hunting.
 
I think they couldn't think of a catchy name for a .296" caliber.  Would be just right for a decent velocity from a 180 grain bullet which the 30-06 shoots too slow and the 300 win mag shoots too fast.
 
JMHO
 
.275 ross is .288  That's the the old Brit cordite empire stuff.
 
The 7.5 mm Swiss is .298.Soap%20BoxRoll%20Eyes
 
So the stuff is there...  .298-.288=.010
 
Uncle Silver has typed this extra slow this time...
um .275 ross? i thought it was the .280 ross??
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/28/2008 at 22:03
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any who you guys missed .311 and .223,  early 22 hornets and i beleve the .218 bees shot .223 not .224 gotta be careful there, some of the euro rifles in these calibers were like that also

Edited by pyro6999 - October/28/2008 at 22:06
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/29/2008 at 00:25
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Look at the taper on the 280 ROSS  Shocked
 
 
the Carcano is dead on but a shorty
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/30/2008 at 12:08
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You forgot .19 caliber -- i.e. the .19 Calhoon.  Not real common, but you can buy bullets.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/23/2008 at 09:54
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I'm most of the way through American Rifle - A Biography and would say one reason there's no .29 is that the U.S. Military first specified a .30 because Ordnance felt it would be better to have a round number for machinists to work with. And they stayed with it for so many years  because - despite the possibility of switching over to the .276 (7mm) - it was hard for MacArthur to justify junking a billion rounds of .30-06 during the height of the Depression.

Why no one else ever introduced one I dunno other than maybe it just sounds odd or doesn't fill a need. Interesting that even the ever-so-precise Swiss felt fine designating their ammo with "7,5" despite it being closer to 7.77. Perhaps we could just round up a bit on .284.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: December/23/2008 at 12:46
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Two more odd ball 22's.  .222 for 22 Remington Jet & .227 for Savage 22 Hi Power
 
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