Bill,

The article that I've posted about is also about shotguns. However, he does talk about strengthening his basic low profile boxlock design (and there are pictures of it as made by an unnamed Italian gunmaker at the time - he should have improved the design since) and I guessed that those of you who actually build guns (as opposed to interested students like myself) would use the principles that he describes to build a double rifle action with your own variations / changes.

Since he is a friend of yours, it is possibly the best thing that could happen, if he might look at this thread when he has time and share his suggestions / pictures of his work if it isn't hush-hush.

Good hunting!