For re-enacting with a smoothbore in Florida (re post #13), a Northwest gun might not be the most historically accurate choice. If you want a trade gun, a
Carolina gun might be more believable. There
may have been a very few Northwest guns that made their way this far south, and I believe I once saw an archaeological report that showed a few parts found in Georgia and northeast Florida, but I can't find it. Also, Tecumseh was known to have owned a Northwest gun, and I believe he came as far south as the Florida panhandle in his efforts to recruit tribes for his coalition. I suppose one could spin a story off that. There was also a TVLLE marked lockplate recovered from the Apalachicola River a few years ago, suggesting the possibility of a French trade musket. However, a Northwest gun would be less believable than a Carolina gun, or even an ordinary fowling piece made by an independent gunsmith. Interestingly, by the time of the Seminole Wars, the Indians preferred rifles.
Don't let any of that stop you from getting a Northwest gun if you want one, though! I live in Florida, and I have two, a 24 gauge from Caywood and a 20 gauge from North Star West. They are great guns, and a lot of fun to shoot. It's just that they might not be the best choice for a reenactor down here. I think the US Army was still using M1816 smoothbore muskets at the time of the Second Seminole War (the big one), but Hall rifles and even Colt's Paterson revolving rifles were seeing limited use in the hands of the military down here.
Regarding the rear sight, these came as standard equipment on the original Carolina guns, and as noted by several others, a few Northwest guns had them. I
think NMLRA rules for Northwest gun competitions prohibit a rear sight above the plane of the barrel. You can improvise a rear sight for non-competitive shooting, but as someone else noted, the tang screw on early Northwest guns comes up from the bottom and threads into the tang. This would complicate using the tang bolt to secure a rear sight. You can see the position of the tang bolt in the top center photo in this "collage" of an old Barnett Northwest gun:
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Most original Northwest guns were nominally 24 gauge, although the ones that have actually been measured tend to be around .60 caliber. The typical "trade ball," intended for use in these guns, was 28 gauge, or .550". I have experimented with shooting my 24 gauge Northwest gun with .550" balls, using shredded bark as wadding over the powder and over the ball, as described by George Bent. Accuracy was poor, although I am a lousy shot anyway. An unexpected finding was that fouling built up heavily and quickly. The
bare ball was hard to load after five shots. Which may explain why Indians carried a spare rod with a worm permanently mounted, for wiping the bore:
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Indians did load shot for birds and small game. Caspar Whitney alluded to that in his comments about the northern Athabaskan people with whom he traveled. This is from his book,
On Snowshoes to the Barren Grounds:
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The book was published in 1896. I can't account for his ".30-bore" reference, but trade guns were certainly in use in the 1890's. Whitney illustrated one of them in his book:
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Isaac Cowie (rhymes with "Joey") also mentioned the use of shot in trade guns in his book,
In the Company of Adventurers. Cowie, a Hudson's Bay Company employee, was traveling on the Canadian plains with a native family. He describes the young son taking game with the family gun, and Cowie himself tried it out for one shot:
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Northwest guns were considered "cheap" back in their day, but they were used very effectively by native people for large and small game and birds. Some people don't like the stocks, but my own guns were built to my specified LOP, and the standard cast and drop fit me fine. Triggers on the modern made guns are probably better than the originals, if you get one from a custom builder.
Best regards,
Notchy Bob