Uberti 1885 rechamber to 303 Epps Imp pics

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Riflechair

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I have this Uberti 1885 Courtney Stalking Rifle in 303 British.
It has chamber deformations (cutting tool chattering marks) resulting in poor extraction and all the Uberti warranty will cover is polishing.
So I'd like to get the chamber re-cut to 303 Epps Improved because I don't expect the pressure to shift significantly from the parent cartridge (49000 psi).

I am however a touch concerned about Uberti's action strength and I'm hoping to get your feedback on that
From what I've read the Uberti 1885 isn't a particularly strong variant of the 1885 but should be safe with up to 27000 to 28000 psi

I expect that Uberti did their homework but could the 303 British Epps Improved RED LINE this action? I certainly don't want it to blow up.
I was thinking of sending her to Elwood Epps in Orilia Ontario (just because) but if you have any other recommendations I'm all ears.

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The Epps won't stress the action any more than the parent cartridge, unless you choose to load it hot. You can realistically expect a 5% velocity gain at reasonable pressures. This means you can drive 180s to around 2600+. I load my Ruger hotter and essentially duplicate 30/06 velocities. Mine is a 303 Epps in 30 caliber.
 
Are you Bill Leeper?
You're famous!
I figure that if I'm going with Epps Imp I may as well run 215gr woodleighs in her.

Leeper said:
The Epps won't stress the action any more than the parent cartridge, unless you choose to load it hot. You can realistically expect a 5% velocity gain at reasonable pressures. This means you can drive 180s to around 2600+. I load my Ruger hotter and essentially duplicate 30/06 velocities. Mine is a 303 Epps in 30 caliber.
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I am Bill Leeper (As seen at Will Henry's Workshop on You Tube)). Probably more infamous than famous. 215 Woodleighs would be pretty nice. For longer ranges, the 180 Sierra is a pretty fine 303 bullet. I really like the Uberti concept, but it sounds like some of the QC might by a little wanting.
 
Depending how bad it is, I would try polishing it first. It headspaces on the rim so even removing a fair amount of metal won't be an issue. Just neck size or partial FL after firing. If the tool marks are deep this may not be practical.
 
I very lightly used some polishing media to see if any deformations could be seen better and holy cow I was surprised to see this.
 

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That is beyond ugly. I suspect one would have to set it back a thread. That would be a bit of a problem if the forearm attaches to the barrel. Problem=money.
 
The 3040 would not clean it up. The shoulder is further forward on the 303. Like I said, it would need to be set back, or the chamber could be sleeved.
 
I have the same rifle, with the same problem. Had to pound fired cases out with a cleaning rod, very nice little rifle, but so disappointing. Sent it back to Stoeger Canada, they polished it up. Works fine now, but chamber looks like above pic. I don't think I'll ever be truly happy with it. I guess there is something to be said about rifles that are test fired at the factory.
 
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