I phosphated (Parkerized) the blade of a BAS about 10 years ago:
The process consisted of alkaline cleaning and rinses followed by 20 mins of "swishing" the blade in the phosphate tank, followed by rinses and multiple oilings with Corrosion-X.
I never used the BAS since...
It is a prewar design, borrowing heavily from the M1 Rifle and modified according to Col. Rene Studler's subjective wishes. Reading the account of the M14's development, Col. Studler essentially kept saying "No, do it again" until he got the rifle he wanted. Otherwise, the US might have ended...
I can help the diversion with the first question, having been a 2111 (Small Arms Repairman) in the Marines in the early 70s, and M14s were still in use.
Personally, IMO the rifle is stuck between two intended missions -- 1) Individual battle rifle and 2) Squad auto rifle.
Foxy Folly, Shamsher, and Dhankuta are SOLD.
20" 30 oz Horn handled Jange by Sher. Unused since purchase. $95
18" 25 oz Elk Antler handled Malla by Bura. Unused since purchase. $105
Prices do NOT include shipping. Shipping is a flat rate $8 per insured/delivery...
A dual-scale tape measure is one of the handiest conversion devices you can own if a calculator isn't available.
Another handy conversion device for speed is your vehicle's speedometer. Very useful when driving in Canada for calculating distance.
Great tips, Yvsa!