My guess is_ he"s thinkin bout put"n a "fifty eight" barrel onner!!
jrkrk_ does raisea question in regards of some thots I had years ago_ bout doin the same thing!
My thots at thet time was___ not only must you "widen" the barrel channel_ but_ you must also "deepen" it as well!
The "foreend cap" would also need the sides and bottom enlarged_ and after all this was done__ the barrel will still still sit slightly "higher" in tha stock!
The "lock plate" would also be sightly "out" from its mortise (plate edge might require "beveling" with a file)!!
Now!!__ lets give the "wedge tennon" some thot!! It will be too "high" if the barrel channel is "lowered"!! If the "wedge tennon" is "lowered"__ will the wedge "THEN" interfear with the "ramrod chanel""??
Thets about as far as I got to thinkin bout the "modification" back then_ cause I ordered "parts" from TOTW_ and built an Early Hawken fullstock!!
jrkrk____ is thet kind"a "what" you had in mind?