Lothar Walther ready to go for the AR/QBD

[SeanMP]

25 cal LW Disco sounds pretty sweet too. What was the latest proj...and where 's da pics dude

[rsterne]

Phone?.... no cell service in Coalmont.... and I sure don't miss it....

Bob

[rsterne]

A bit of a problem sealing the transfer port, unless it seals against the barrel itself (still custom lenght required).... I was wondering about using a fairly close barrel fit at the back of the breech (behind the transfer port) with virtually no movement.... O-rings either side of the port to seal the barrel to the breech.... Then the rear row of setscrews just in front of the front O-ring.... The front row of setscrews would be as far forward as possible to allow "aiming" the barrel.... The breech would be oversize from just ahead of the front O-ring to the front....

You would back out the rear row of screws, aim the barrel with the front row of screws.... it would be rotating on the rear of the barrel where it fits snug in the breech and the O-rings.... When you get the alignment right, then you progressively tighten the rear row of setscrews for ridigity....

Bob

[just missed]

Could a QB78D be converted to a .25 by just swapping out the barrel and probe?

John

[SeanMP]

Ya certainly

There would be the normal fiddling around to dial in the required velocity that is normal when changing calibers

[rsterne]

My intention is just to machine off the forward part of the bolt, drill and tap it, and make a larger front section carrying a larger O-ring and pellet probe....

Bob

[Dukemeister]

My intention is just to machine off the forward part of the bolt, drill and tap it, and make a larger front section carrying a larger O-ring and pellet probe....

Bob

Would you post a pictorial of how to do the probe, please Bob?

[rsterne]

Will do when I machine the bolt....

Bob

[rsterne]

I also was thinking of making the pellet tray separate from the barrel.... I presume that is what you did?....

Bob

[Gippeto]

You got it Bob. :)