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User Panel
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Posted: 8/3/2011 2:48:00 PM EDT
[#1]
most 308 barrels are really chambered in 308 like you say, very few in 7.62x51, or 95 Palma
May be some lightweight 18" barrels coming soon from what I hear. |
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Posted: 8/3/2011 3:16:09 PM EDT
[#2]
Quoted:
most 308 barrels are really chambered in 308 like you say, very few in 7.62x51, or 95 Palma May be some lightweight 18" barrels coming soon from what I hear. the DPMS SASS barrel is 7.62x51 and apparently is an accurately barrel |
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Posted: 8/4/2011 1:20:31 PM EDT
[#3]
What's wrong with shooting military surplus ammo in a .308 chamber?
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Posted: 8/4/2011 4:10:32 PM EDT
[#4]
Quoted:
What's wrong with shooting military surplus ammo in a .308 chamber? Nadda, the problem some say is shooting .308 ammo in a 7.62x51 chamber. .308 greater pressures then 7.62x51 |
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Posted: 8/4/2011 4:20:28 PM EDT
[#5]
Basically, the only differences are 7.62x51 is has a .005" longer chamber spec, and the 308 has a 62,000 psi cartridge spec and 7.62x51 has a 50,000 psi cartridge spec. I Honestly wouldn't worry about changing your barrel unless your just looking for a reason to rebarrel your rifle.
the part right under the big blue section is what your looking for. Read this. |
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Posted: 8/4/2011 6:30:42 PM EDT
[#6]
Quoted:
What's wrong with shooting military surplus ammo in a .308 chamber? DPMS worries about the brass being too big for their 308 chambers which are a little tight. From their forum:: In a DPMS rifle it is safe to shoot both 7.62x51mm and .308 from the 7.62x51mm chamber. We do not recommend 7.62x51mm in a .308 chamber though due to extraction issues and increased wear. Oh, and the pressure thing, it is 62000 PSI for 308, and 50000 CUP for 7.62x51. They are measured differently and are not equal units. There is correlation, but they are not equal. Correlating PSI and CUP |
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Posted: 8/4/2011 9:38:39 PM EDT
[#7]
Quoted: Oh, and the pressure thing, it is 62000 PSI for 308, and 50000 CUP for 7.62x51. They are measured differently and are not equal units. There is correlation, but they are not equal. Correlating PSI and CUP The TM 43-0001-27TM 43-0001-27 has the 7.62 at 50/52K PSI not CUP. Your assumption is wrong |
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