[doorgunner69]

7.62x51 NATO (.308) is a standard round in inventory. The 30-06 has been out for decades. It's all good, in standard loads the 7.62 is a close approximation in ballistics in a smaller case.

Got to get into handload range to let the 30-06 stretch its legs and take advantage of the bigger case.

[Blood of Tyrants]

Also, the Garand is very particular about the powder type and load. Powder that is too slow or fast or too much powder and you can damage your op rod.