Hi Dan,
Your points are good and certainly could support an 1803 prototype. However, has the alleged "L&C short rifle" been determined to be genuine? If not everyone is back to speculation.
dave
I do not know how it would be possible to determine what rifle was or was not taken on the expedition.
IMO its all guesswork and speculation.
You cannot discuss the L&C short rifle honestly not not add one of these terms.
The bursting at the muzzle is an indicator, maybe.
Some state that Dearborne did not order the rifles until after Lewis departed. True.
But he MUST have had a pattern rifle to look at to make the changes he recommended. They did not work from drawings at this time. He had a rifle in his hands to comment on.
So we can safely assume that Lewis saw prototypes. If he liked them he could easily have ordered 15. For all we know the offcials at the armory could have recommended them.
Making 15 rifles in the time frame was possible for HF especially if they were planning on make a run of them anyway which I am sure they were. This had been in planning for sometime by my reading.
We also run afoul of creative editing of the published Journals. One version has Lewis stating that the guns were made at HF. But this is not what he wrote when looking at versions without creative editing. (Garavaglia and Worman use the "edited" version in Firearms of the Amerian West 1803-1865)
We do know that Lewis had replacement locks/parts made.
But then the 1792s were later all relocked with the 1803 style lock that was closer "interchangable" in its parts than the hand made locks on the 1792.
It would be interesting to know what rifle George Drouillard took with him, if any, when he left the expedition. He had been using a "expedition" rifle for a couple of years and I doubt that he brought his own along.
The 1803 was the classic prototype for the Plains rifle. 1/2 stock, 1/2 ounce ball relatively short barrel.
it was pretty much what was settled on as a rifle for the west by 1830 or so. So its easy to get all ga ga and say this is what they must have used. It was perfect right? But this is not fact.
Considering the importance of the Expedition to American history it would be thrilling to find stuff that was positively used. But IMO its just not possible. Sherlock Holmes could only speculate.
So we look at what was written by the participants, that we can find, and go from there.
But firearms description was not high on their list of things to write down it seems.
Would be nice is some lost journal by an expedition member would turn up with a detailed mention of the rifles, I understand that several that supposedly existed are lost.
But I will not hold my breath.
Dan