how far forward for the vent liner

Good...

As for the Lancaster Precarve, IF the lock is preinlet, the build proceedure is do the LOCK inlet FIRST, then Barrel inlet to proper place to accommodate the vent liner in proper position, then the tang........

:thumbsup:

Fireman - below is pic of Pecatonica pre-carve - I asked Dick G. to just do the barrel channel and RR hole.
Rear of barrel channel has run out from his milling machine - you can work this area to put barrel as far back as you want.
(The flat square areas and corners in breech are where I started chopping -it's all rounded when PR sends it to you.)



Then you can inlet lock wherever youwant, to match your desired flashhole location. They leave you a bunch of extra wood to play with.



I know you probably knew all this by now, but thought some pics of a Pecatonica early Lancaster (Dicket actually, but sorta close) might help you decide how much pre-inletting you might want PR to do.... or not do.