this is my "roller resto project" rifle I just bought... it's a #1 Black powder action, that was converted to 225 Winchester ( probably in the 60's ), when it was redone as a bench rest rifle

both my builder ( a retired tool & die guy that has been building guns his whole life ) & I, think the 225 Winchester is too hot a cartridge for the black powder action, so... since the barrel is about 3/4 shot out, we'll be rebarreling it in 32-40... interestingly, while the barrel is nearly shot out, the action is still solid & tight... we won't know untill fully disassembled, what if any parts were changed or modified, but I suspect some of the action parts may have been changed out with smokeless parts ???

I found the pics interesting, as other forum members I've spoken with, have claimed that the breech block lock up was the weak link, but my buddy said he thought the frame between the pins was the weak link... he'll get a kick out of seeing the pics...

my "roller resto" project... "before" pics... ( I'm just begining to pull it apart, & should have it totally redone as a bench rest gun in 32-40, before winter is over )

Here is a link to a website showing a Danish Rolling Block failure that was discussed on the BPCR.net forum :

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Take a look at the detail of the end of the barrel. If you look the threads are turned down and it looks to be much deeper than just to go through the reciever ring. that would leave the barrel un supported at that point. This was the case when the Roller let loose that was written in the Journal a few years a go. 

40 Rod

Magnum Wheel, That is a Beatifull Rifle, I am sure you paid a prtty penny for it!
Thanks for showing it
ACE