308 subsonic

[mosigdude]

Only thinking out loud here, and I have never tried this, there may be reasons not to... but that's why I'm replying, maybe someone already has.

Some talked about reducing the case capacity by filling with epoxy or purchasing cases that had been specially manufactured to do so. The problem with the epoxy or modeling plastic seems to be a lack of consistency (air bubbles and such) and the frailty of the filler (i.e. pieces breaking off and getting stuck in the suppressor) The problem with the manufactured cases seems to be availability and expense.

Would it be possible to weigh a small quantity of lead shot, melt it in the case, allow it to set, the re-drill the flash hole to the desired diameter, standard or enlarged. It seems that the lead would be more malleable than most epoxies and by weighing it, the case capacity could be reduced semi-scientifically.

The potential problem I see in the beginning is having to drill the flash hole smaller than the primer and having to use a special decapping pin to remove spent primers. Obviously, only neck sizing would be possible with the lead filler taking up the lower portions of the case.

It would be nice to be able to make 308 cases with similar capacities as the 300 Whisper, this would make load development at least a little easier.

If no one else has tried this, I may give it a run, I really have no need for a subsonic 308 since I have the whisper, and suppressors are illegal in MO anyway but curiosity has now gotten the better of me. If you have, post up with your results.