Thread: Why GA is Dying
View Single Post
  #7  
Old July 28th 06, 03:19 PM posted to rec.aviation.piloting
Matt Barrow[_1_]
external usenet poster
 
Posts: 53
Default OT rifle caliber (was Why GA is Dying)


"Orval Fairbairn" wrote in message
news
In article ,
Newps wrote:


Nope.
.30-'06

Yep, caliber and year, not a fraction.


Ok, what do the numbers mean? I've heard of a "thirty ought six"
referring to a gun, and think I know one of them (.30 inches?) refers
to
the gauge (width of the bullet). What's the other?


The year, 1906.


Actually, the .30-06 was came out in 1903 -- hence, the 03-A3
Springfield. IIRC, it was adopted as a military standard round in 1906.


Nope! The '03 was slightly different and when modified, was put in final
production as the '06.

From the 1903 Springfield Tribute Page:

"The round developed for the 1903 was a Mauser-style rimless cartridge that
fired a 220-grain cupro-nickel-jacketed roundnose .30 bullet at some 2,300
feet per second (fps). Following the adoption by the Germans of a 154-grain
spitzer bullet that had a muzzle velocity of 2,880 fps, U.S. Ordnance
officials began rethinking our 1903 round and came up with an improved
version with a 150-grain spitzer bullet and MV of 2,700. The new "Model
1906" (or .30-'06) case was .070 inch longer than its predecessor and more
than lived up to its promise as a military round. With various loadings it
became one of the world’s preeminent hunting rounds and a not too bad
targeteer. "