Reference material question

[WRA_SA]

Somewhere on this board, I saw a post mentioning the website"usriflecal30m1.com" had inconsistencies and should be avoided. I've pretty much always used Scott Duff"s "red book" as my go-to. Aside from some personal notes and a few other books, that's what I've got. What's everyone else using?

[Bubba1]

Duff's red book
Canfield's book
GCA journals
The Garand Stand Report
Pyle's gas trap book
Original datasheets
SRS data
My research,

To name a few....

[TJT]

Add to that Poyer/Reich and Hatcher.
Jon

[SA1941]

I have Canfield’s book, it’s my go to for everything. Also have Duff’s book, but it doesn’t have the gory detail I like.