Breaking in a tight new double rifle

I think you are talking about the Greener cross bolt on a double rifle? If so, yes it must engage fully to be safe. If I haven't understood you correctly please can you send a photo of what you mean.
 
I an having the exact same issue with my new ken Owen double and i am just breaking it in and making sure all is nice and greased. I did however just buy a bottle of the Kroil on amazon
 
I’ve had a few brand new double shotguns and they were stiff as stale jerky.

My cure has involved snap caps, lube as normal, and work. Works too, and faster than you’d think. I’d listen to Mr Peacocke.

What did he say? Pressure smoothing.

Nowadays I use Molykote spray on areas with visible polish but limited pressure. Locks too. Good grease goes on the hook and the underlugs where theres plenty of pressure. This is both on vintage and newish break-opens.

Lately I’ve been breaking in a tight and gritty feeling 550 and that guy gets molykote on the mag ramp, all bolt external friction points, and a little light oil and molykote in the sleeve. Then I sit on front of the boob tube watching safari videos, annoying wife and dogs, cycling cycling cycling, and at times pulling the trigger on Mr Dagga. Aaaand, it works! As the man said it’s about polishing some microscopically high spots, which is what, bending down some peaks, not removing material.

Huge fan of dry lube now since I had a Model 12 gum up on me in the duck blind. Found the dry lube, cleaned off any petro lube, dry lubed the bolt, action and trigger group, problem solved.

This started as I was thinking about dusty old Africa so I called up the chief gunsmith at Griffin and Howe, having already decided to experiment with spray graphite and molykote, he fully endorsed and recommended this known approach, so am not exactly reinventing the wheel.

Now: Messy, unpretty. Effective.

Next, trials with moly grease, moly paste.

Away from extreme cold or dust!
 
I’ve had a few brand new double shotguns and they were stiff as stale jerky.

My cure has involved snap caps, lube as normal, and work. Works too, and faster than you’d think. I’d listen to Mr Peacocke.

What did he say? Pressure smoothing.

Nowadays I use Molykote spray on areas with visible polish but limited pressure. Locks too. Good grease goes on the hook and the underlugs where theres plenty of pressure. This is both on vintage and newish break-opens.

Lately I’ve been breaking in a tight and gritty feeling 550 and that guy gets molykote on the mag ramp, all bolt external friction points, and a little light oil and molykote in the sleeve. Then I sit on front of the boob tube watching safari videos, annoying wife and dogs, cycling cycling cycling, and at times pulling the trigger on Mr Dagga. Aaaand, it works! As the man said it’s about polishing some microscopically high spots, which is what, bending down some peaks, not removing material.

Huge fan of dry lube now since I had a Model 12 gum up on me in the duck blind. Found the dry lube, cleaned off any petro lube, dry lubed the bolt, action and trigger group, problem solved.

This started as I was thinking about dusty old Africa so I called up the chief gunsmith at Griffin and Howe, having already decided to experiment with spray graphite and molykote, he fully endorsed and recommended this known approach, so am not exactly reinventing the wheel.

Now: Messy, unpretty. Effective.

Next, trials with moly grease, moly paste.

Away from extreme cold or dust!

Not sure if I wrote this early on or not. New, tight double rifles get Kroil, the thinnest oil possible to get things moving while you pound the heck out of it so it breaks in. Vintage Doubles get a lot of thick grease to slow wear and keep it from breaking loose.

One is accelerating break in, the latter is retarding it. It all depends on the gun’s station in life.
 

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SCmackey wrote on SBW1975's profile.
I have a Chapuis 450-400 double that looks brand new and shoots well, never been hunted from what I can tell. I am willing to part with it as I have a 375 H&H Sodia on it's way from Dorleac & Dorleac. I am looking for $9,250 for it and if you are interested, I am happy to send you some pictures. Regards,
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Hi There, I saw the pics of the VC 470 NE, what is the asking price? Thanks, Steve
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