tws3b2
Member
It's best not to try to understand it all. Just shoot and enjoy.
It's best not to try to understand it all. Just shoot and enjoy.
And some of them are just complete nonsense, such as 327 federal which is actually .312 caliber.
Not really. The .30-03 had a bullet which weighed 220 grains and was a round nose bullet' with an advertised velocity of 2300fps. The .30-06 bullet (initially) was a 150 grain spitzer bullet at velocity of 2700 fps. The case of the .30-03 round was 65mm long, while the .30-06 case was (and still is) 63mm long. The head, body and diameter of neck is the same. I cannot find any answer to 'where' the case was shortened; I would presume in the body, leaving the shoulders and neck alone. Due to the shorter chamber, the .30-03 cartridge will not chamber in the .30-06 chamber.30-06 is the spitzer bullet version of the 30-03
Not really. The .30-03 had a bullet which weighed 220 grains and was a round nose bullet' with an advertised velocity of 2300fps. The .30-06 bullet (initially) was a 150 grain spitzer bullet at velocity of 2700 fps. The case of the .30-03 round was 65mm long, while the .30-06 case was (and still is) 63mm long. The head, body and diameter of neck is the same. I cannot find any answer to 'where' the case was shortened; I would presume in the body, leaving the shoulders and neck alone. Due to the shorter chamber, the .30-03 cartridge will not chamber in the .30-06 chamber.
The metric description of 9x19mm, 7x57mm or 7.62x39mm strikes me as rather lacking. The bore or bullet diameter and the over all length is given. But no mention if the case is straight walled, bottle necked or Klein bottle shaped.
I have seen this said, but it seems strange to use a parent case that was nearly 20 years out of issue. I wonder what you get if you feed a .30-06 into a .270 die. Does the neck extrude a bit as it is sized down?
You can shoot .30-06 in .30-03, but the other way 'round is dangerous. With it's slightly longer neck, the .30-03 can protrude into the throat, and not have enough room to expand to release the bullet, and pressures go through the roof.As best I know, the neck is what was shortened.
Winchester 1895 .30-03s got shot with .30-06 as their intended ammo dried up.
You can shoot .30-06 in .30-03, but the other way 'round is dangerous. With it's slightly longer neck, the .30-03 can protrude into the throat, and not have enough room to expand to release the bullet, and pressures go through the roof.
You can shoot .30-06 in .30-03, but the other way 'round is dangerous. With it's slightly longer neck, the .30-03 can protrude into the throat, and not have enough room to expand to release the bullet, and pressures go through the roof.
I can see the confusion.And I think the 270 Winchester is based off the 30-03
I can see the confusion.
All I've read says the .270 Winchester is based on the .30-06 necked down to .270 size. The .30-03 round seems to have no life except for the three years between 1903 and 1906. It does not seem to exist other than that period. No rifle - other than the initial run of M1903 rifles chambered so - were chambered as .30-03; no other military and no commercial rifle.
Then the .270 Winchester as a commercial cartridge was lengthened to avoid chambering the .270 Win in a .30-06 chamber, I've read. (It seems to me as wishful thinking.) The 280 Remington is also longer than the .30-06 (according to wiki and shown as such in Ammo Encyclopedia #5). However the .270 is listed as having been developed in 1925 by which time the .30-03 was long gone. The .280 Remington was introduced in 1957; also long after the .30-03 was scrapped.
All sources I've checked agree the .270, the 280 are the same basic case as the .30-06. Wiki claims the .30-03 as the parent case. I find basing the 1925 development of the .270 from a case discontinued some nineteen years earlier unlikely.
This is why gun stuff is so fun, you’ll probably learn something new everyday.
Some M1895 Winchesters were chambered in .30-03I can see the confusion.
All I've read says the .270 Winchester is based on the .30-06 necked down to .270 size. The .30-03 round seems to have no life except for the three years between 1903 and 1906. It does not seem to exist other than that period. No rifle - other than the initial run of M1903 rifles chambered so - were chambered as .30-03; no other military and no commercial rifle.
Okay. How long were they made that way? That same question might be worded as 'How many were made?' How long past the change from '03 to '06 were they made?Some M1895 Winchesters were chambered in .30-03
The shoulder location of the .270 Winchester is at the same place as it is on the .30-06. On both the shoulder starts at 1.948" from the base. The .270 Winchester is slightly longer because the shoulder is the same angle but the neck is smaller in diameter, so there is extra material that needs to go somewhere when you resize the case to the smaller neck diameter.I can see the confusion.
All I've read says the .270 Winchester is based on the .30-06 necked down to .270 size. The .30-03 round seems to have no life except for the three years between 1903 and 1906. It does not seem to exist other than that period. No rifle - other than the initial run of M1903 rifles chambered so - were chambered as .30-03; no other military and no commercial rifle.
Then the .270 Winchester as a commercial cartridge was lengthened to avoid chambering the .270 Win in a .30-06 chamber, I've read. (It seems to me as wishful thinking.) The 280 Remington is also longer than the .30-06 (according to wiki and shown as such in Ammo Encyclopedia #5). However the .270 is listed as having been developed in 1925 by which time the .30-03 was long gone. The .280 Remington was introduced in 1957; also long after the .30-03 was scrapped.
All sources I've checked agree the .270, the 280 are the same basic case as the .30-06. Wiki claims the .30-03 as the parent case. I find basing the 1925 development of the .270 from a case discontinued some nineteen years earlier unlikely.