Need .30 cal load ideas

[spacecoast]

The original DWM round nose ammo was loaded to 1.173 inches.

Can't say for sure without trying, but I have serious doubts as to whether ammo with an OAL of that value would fit into the magazine, especially with the more blunt profile of the bullets I purchased from GT. I loaded mine to 1.145", same as the Western round shown on the right, and they seemed like a pretty tight fit.

You are correct that the specs allow for a max length of 1.175". I will load up a dummy round and verify what the longest round is that I could use in both my Mecgar and older magazines.