04-13-2012, 03:20 PM
They have correctly identified one of the problems with the 7.62 NATO-based cartridges: Weight/size
I want to get rid of the whole T65/M80 case because of the weight/size penalty it brings with it. It also is not a good case for a high-volume military weapon for a 6.5mm because of over-bore and throat erosion, although some of that can be dealt with using modern metallurgy.
This further steers us to the shorter .445" case head diameter, made of strong brass capable of higher pressures, with a shorter overall length. We don't need a case volume of 44-50grs to beat the 7.62 NATO when pushing 6.5mm bullets either.
I really think a 130gr Grendel is the way to go.
I want to get rid of the whole T65/M80 case because of the weight/size penalty it brings with it. It also is not a good case for a high-volume military weapon for a 6.5mm because of over-bore and throat erosion, although some of that can be dealt with using modern metallurgy.
This further steers us to the shorter .445" case head diameter, made of strong brass capable of higher pressures, with a shorter overall length. We don't need a case volume of 44-50grs to beat the 7.62 NATO when pushing 6.5mm bullets either.
I really think a 130gr Grendel is the way to go.