07-01-2013, 04:00 AM
Trooper Wrote:If we merely wanted to out perform the 7.62 NATO, the 260 Rem (6.5x51) does that now using the same case. The 260 Rem might be the starting point for comparisons. Then the process would be creating a smaller case that has similar performance. One might want to have a bullet that is similar to the M80. Maybe a FMJ lead core for comparison tests.
Also there is a need to have something other than a brass case as it is just too expensive to leave on the battlefield. So part of the design is a plastic (polymer) case.
polymers melt in hot chambers which causes problems, at least that was the problem with past attempts maybe some new wonder polymer is in the works...
aluminum is not suitable in high pressure application as it has a tendency to fail if i recall they tried aluminum high power rifle cases in the 50s it didn't work out
titanium cost more than brass beyond the fact that it is difficult to work with...
steel works and is cheap but its it can be harder on equipment
Punctuation is for the weak....