Re: Just purchase m1a
Scott Duff's M14 Owners' Manual.
Additional magazines; our M-14 combat loadout was six 20rd mags and one in the rifle. You may be able to find a repro M-14 rifle belt and pouches online.
Get a gas cylinder wrench (it surrounds the cylinder while tighten/untightening the gas cylinder plug with the combination tool).
Never try to do/undo that plug by securing the stock. I tried to undo the plug the first time, tightened by King Kong at the factory, and shattered the brand new stock it its weakest point, the magazine well.
Muzzle guide for the cleaning rod. One piece cleaning rod, I prefer naked stainless.
.052" diameter N/M hooded rear sight aperture, with the 1/2MOA rotational adjustment, plus the corresponding narrower N/M front sight blade. There is a 1/2MOA click windage mod available as well.
Be aware that until the stock gets properly bedded and the gas cylinder gets unitized, accuracy gains will be limited, and that wooden stocked M14/M1A's are vulnerable to bedding problems when the weather changes.
Scope mounts need to be carefully researched before you make a final choice.
Never, repeat never, overtighten the gas cylinder plug. It's design intends that it needs to be retightened avery 50-100rd. Firm, but not cranked.
Only fire match (FGMM, M118, M852, etc.), or military ball equivalent ammo (American Eagle, UMC, Win White Box).
Handloads should be developed with the M1A/M14 restrictions in mind.
Bullet weights between 147gr and 180gr, powder on the quicker side, with IMR-4064 being near the limit on the slow side. Factory hunting loads should be 165gr or lighter, heavier commercial hunting loads can be overzealous for the M1A. For hunting, research the S/A 5rd magazines.
My M1A load is Rem .308 Bress, Fed/CCI Match Primer, 42.2gr of IMR-4064, 175SMK at 2.815" OAL. This is a 1000yd-capable M1A/M14 Match load. IMHO, there is no point in making up any other comp load for an M1A/M14. Note, it kicks a bit...
Be absolutely sure the primer gets sunk flush or lower, and that all rounds, even single feed, get fed FROM THE MAGAZINE!.
Hand-chambering a round and releasing the bolt to slam deliberately home atop an empty, dislodged, or missing magazine defeats the design specs and can make a slam fire far more likely. Just seat the round into the mounted magazine from above, and allow the bolt to strip it out according to design. That way, the bolt encounters enough drag to significantly reduce the chances of a slam fire.
Greg