...
Really hard to understand why all the pushback on going to a .50 BMG action - a lot more straightforward than doing all the forced-fit work with smaller cases that will never have the capacity of the .50 BMG class. If you can afford the development, step up to cartridges based on the 20mm Vulcan.
...non-bmg actions, with .750"- .800" bolts, there are about a dozen, some priced pretty reasonable...
Our 416 HSM will have about 25gr more capacity than regular
50bmg, and as for actions if you add up the fat bolt non-bmg
actions, with .750"- .800" bolts, there are about a dozen, some priced
pretty reasonable. Ed