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Sunset Riders / Re: Sunset Riders Roll Call
« Last post by Bad Karma on June 20, 2021, 10:06:02 PM »
Sourdough has shuffled off this mortal coil... I heard about it on the high road BP sub forum. He was one of the good ones and I will miss him.
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Percussion Rifles / Re: Felix Escoffier
« Last post by Hawg on June 19, 2021, 12:04:19 AM »
Back in the early 2000's I was admin of a now long defunct forum. One of the other admin had a single shot rifle that belonged to his great grandfather. He also had several original 45-70 cartridges that went with it. The rifling on that thing was the deepest I've ever seen. It made yours look like a smooth bore. He said he did fire it a few times and it was accurate but it leaded the barrel up bad.
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Percussion Rifles / Re: Felix Escoffier
« Last post by Len on June 18, 2021, 12:24:36 PM »
Hi Racing, now I'm just trying to think out of the bloody box. In gas turbines the sealing is achieved by a row of thin flanges along the axle (labyrinth seal) and in gut surgery  they insert silicone tubes with thin flanges. Why not try a bullet with thin flanges, not with a waist, but more like love handles, i.e. more than the diameter, so that when pressed into the breech the flanges bend backward. And maybe the cylindrical aft of the bullet should be shorter. You could easily turn out some samples in the lathe.
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Percussion Rifles / Re: Felix Escoffier
« Last post by Racing on June 17, 2021, 06:30:56 PM »
@ Len.
Yeah, i hear ya on that one. As this is a hooked breech rifle though i´m going to bed that tang so the impact/force is equaled out as best as it can at least.
What to keep in mind here is that the stock is REAL slender for a 451 gun.

So. We went shooting.



Nope. Still not even close. Of course this could always be reasoned as driver induced but once and for all.. When we sit down at 100 meters with the Anschutz both me and Patric will deliver groups that to the LETTER can be covered with a regular man sized thumb nail.
What i´m saying by that is.. we´re no newcomers to this.
Sry to say this is rifle induced and i´m currently doing my damndest trying to figure out what´s going on here.

Thing is.. The difference in min diameter comes down to like 6/100mm and that might very well be the idea of a choked barrel. But in that case, what WERE they thinking as far as loads at St Etienne at the time cause this is getting nowhere... fast.

ALL the needed attributes are there! This is no doubt a fast twist 45 cal rifle made back in the day as a high accuracy smoke pole! No two ways about that...
That shorter bullet i designed, idea was for a "short range" pill. But.. we´re still all over the map. As we get even a HINT of "we got it!"... nope.

What we´re going to try now is to physically drill a "minie hollow" out rear and see if that aids any. Thinking being that.. might be we´re asking the bullet to expand from a solid base way to much?
Please keep in mind this rifles downright INSANE rifling depth. Idea we´ve got is not to make the bullet seal but just to get it to take to the rifling earlier than it SEEMS to do deep within the barrel upon firing.

We really should fire into water to get an idea of how the bullet looks as it exits the muzzle. Where to pull that off tho?



Here they are. Sized to 11,09mm and that brings that as we shove them down the pipe.. we simply can´t ASK for a better fit. It´s that simple.
Bullet stays that tight for like.. 600mm out of the barrels 800mm total. As it closes in on the breech it´s like it rattles in place.

If this goes to hell in a handbasket i´ll friggin turn the tools needed out of SIS-2241 steel to scuff that insane rifling down, 1/10 of a millimeter at a time (which equals 5/100mm per land) and keep doing so until i see a uniform dimension at around 11,45mm. Or.. 450 caliber if you so wish.
The grooves are all in at approx ,460" so.. spare to go need be.

But.
For my own sanity, and as an engineer, i friggin NEED to get to terms with what Felix Escoffier had in mind down at St Etienne in France back in the mid 1860´s.
It´s a real bummer he´s not around to ask anymore..  (?^
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Percussion Rifles / Re: Felix Escoffier
« Last post by Hawg on June 16, 2021, 07:18:14 PM »
You'll get there Racing, of that I have no doubt.
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Percussion Rifles / Re: Felix Escoffier
« Last post by Len on June 16, 2021, 02:26:02 PM »
Hi Racing, I experienced a crack in the stock of an old flintlock pistol. Used to shoot it with 15 grains of Swiss. Then one day I got bold and said "what the heck", let's try 30 grains. Got a substantial recoil and a crack in the grip parallel to the barrel. Crack was heard above the bang.
 200+ years of walnut goes brittle and the fibres are often aligned in an unfavourable direction. But then of course any damage is a welcome challenge to address.
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Buy Sell or Trade / Re: WTB butt plate for a mod. 1884 SPRINGFIELD RIFLE.
« Last post by toot on June 14, 2021, 03:00:11 PM »
BTT.
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Off-Topic Discussion / Re: Chip McCormick
« Last post by Centurion on June 14, 2021, 04:35:50 AM »
Thanks Hawg! I friend of mine told it to me as a surprise on last September, but after some checking I saw that it was another "Chip" Mc Cormick (Burland instead of Michael).
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Welcome Wagon / Re: Hello me
« Last post by Sooty Barrels on June 14, 2021, 04:10:42 AM »
 (D@
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Percussion Rifles / Re: Felix Escoffier
« Last post by Racing on June 13, 2021, 05:15:20 PM »


Hm. You might recall that i took to bed the barrel? Well, an awful lot of shooting went down the other day as stated, and that rendered a crack in the stock. Between the rear tang and the lock mortis.
Easy and simple enough to handle but also a receipt that i need to bed that rearward part of the barrel hookup. So..release agent and some two comp epoxy coming up...



Now, i´m by NO means a stranger to recoil. But..there IS a line. Firing like 130-140 shots the other day divided between two shooters, first time in 35yrs i came home with a sore shoulder. That.. made me pull this very temporary stunt. Yup. Says Beretta. True.
It actually fits rather well, and i´m absolutely positive that the piece will make firing 90 grains of powder beneath a 500 grain pill in a 5 pound rifle somewhat..easier over the long haul.



No. Still haven´t remedied the issue there with the "waist band" on these boolits, but whatever for now. We´ll get there, but meanwhile we also need to push forward.
Thus i cast yet another batch today, and we´ll need it..

That calibration eye i made, going to make yet another one.. one that´s 3/100 of a mm smaller i diameter. Point here being that we´re not allowed to clean the barrel between shots and thus.. ample amounts of grease but also a boolit that isn´t excessively large - seeing all bets in.
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