The groove in the tail makes a wierd photographic anomaly. Like wearing a striped shirt on TV. The surfaces are just filed and sanded with emery cloth (the modern equivalent of abrasive on a felt pad...same thing, just messier).
As to the frizzen fit to the pan: it's plenty good enough. Absolute perfection is not required (I don't see any gaps in the photos anyway :hmm: ). Besides, do you know how many DAYS can be spent just fitting something like this together "perfectly"? It doesn't have to be waterproof (it never will be). It has to keep the priming from blowing out.
I used to worry about getting an absolute perfect fit between the frizzen and pan. I would file, and file, and file, and file, and file, and file, and file, and file, and file, and file, (takes breath), and file, and file, and file, spending an absolutely immense amount of time on something that isn't really that important anyway. PLUS, after fitting the frizzen "perfectly", when you put spring pressure on it, it all is for naught, as everything torques around just a little bit. I gave up "perfection" long ago. :wink: I have not seen ONE "factory" lock that ever had a perfectly fitted frizzen to pan (often, they're pretty awful), so I figure I'm doin' fine. Now, if I were building a $50,000 British shotgun, I might worry about such things. I don't get paid enough for "perfect". :grin: Sorry, one of my many peeves! Kinda like spending days getting a barrel perfectly inletted all along the bottom of the barrel channel. I've done that, used to worry the far out of me, but I found that it isn't necessary, and most definitely wasn't worried too much about 250 years ago. I spend "too much" time as it is on things like this. I'd have to get a bit quicker and looser if I were to ever make any money in the 18th century!
My goal is to build a gun that looks and feels like a real 18th century gun as much as possible. I think one of the worst things I can do is send out a gun with a lock that is recognizeable as a modern "factory" lock. Especially a Siler. I can spot a Siler a mile away.
The lock is made from.....a Siler kit. The lockplate reshaped a little and that immediately-recognizeable Siler pan reshaped to something more attractive (and typical to the period), the frizzen was leaned back to get a smoother strike from the flint, and the tail of the frizzen forged around and curled up, and the frizzen reshaped and refiled. The cock is one of the "blank" cocks from Track of the Wolf (which I use often). The double-screw solid bridle I made myself. The frizzen spring ain't the prettiest spring around, but I had it in my parts box, so I used it. Had to reshape it a good bit. It's from a Davis something-or-other, I don't know where it came from.
It sparks pretty well and smoothly so far. I MIGHT bend the cock down ever so slightly, but I think it will be fine as it is. I do need to final file the bolster for fitting to the barrel, and dang, I forgot to stamp my initials inside the plate!
One thing I do try for perfection on is the strike of the flint on the frizzen. It needs to be a smooth, glancing blow, which not only makes better sparks, it keeps you from gouging up the frizzen and wearing it out. I'm also pretty tight about getting contact with the shoulder on the cock to the top of the plate at the same time that I get contact with the back of the tumbler on the bridle. THAT is something that I do spend too much time on. :grin: