Shooting TL bullets in a "Gas Gun"

[Wayne S]

Has anyone tried TL [tumble lube] bullets in a "gas gun" {Ar's M1,M1A,ect} ??
Is so;
what were your results over conventional lubed bullets ?
Any issues with the operating system after 25,50 or 100 rounds ?

Thank you

[Outpost75]

I've used them in the Garand, C312-155-2R cast uniformly frosted and drop quenched, Hornady GC, LLA and 30 grs. of RL7 in the '06 for 2082 fps. No lube issues, but you get some lead wash into the gas cylinder and on the face of the op rod piston. I pull the gas cylinder plug, leave the lock alone, and use Kroil on. 410 brush to clean gas cylinder. Remove op rod and clean normally, sometimes needs atouch of steel wool and Kroil on face of piston, but lead comes off easily. Clean bore in normal manner with Kroil or Ed's Red. I onlt tear down rifle if ejsction becomes sluggish, about every 200 rounds or so.

[Wayne S]

OP,
is your LLA straight or a mix like 45/45/10, or other mix ??
After a test session, usually 100 to 150 rds the gas piston on my M1A is sluggish to force applied by hand and the system gets a good cleaning, no leading in the bore, but I'm only running my 200 gn bullets about 1700 +-

[Outpost75]

I dilute the LLA equal parts by liquid volume with mineral spirits, and apply two light coats, one before sizing and seating GC, then repeat again after. I can see where closer tolerances in M14/M1A could gunk up. I've had no issues with lube residue in Garand, only gas cylinder, gas cylinder plug and operating rod piston lead deposits. Important to put antiseize on threads of gas cyl. plug!

[Jupiter7]

I've shot probably 3-500 straight LLA w/o cleaning with same boolit, 312-155 in 300blk AR. No real difference vs. Jacketed reloads. Still cleaner than factory ammo on the bolt/carrier/key areas.

Same with all my AR's, "feels" sluggish, gets a spray of CLP in the carrier/bolt cam lug area and work charging handle a few times, good to go.

[30CAL-TEXAN]

I've used them in the Garand, C312-155-2R cast uniformly frosted and drop quenched, Hornady GC, LLA and 30 grs. of RL7 in the '06 for 2082 fps. No lube issues, but you get some lead wash into the gas cylinder and on the face of the op rod piston. I pull the gas cylinder plug, leave the lock alone, and use Kroil on. 410 brush to clean gas cylinder. Remove op rod and clean normally, sometimes needs atouch of steel wool and Kroil on face of piston, but lead comes off easily. Clean bore in normal manner with Kroil or Ed's Red. I onlt tear down rifle if ejsction becomes sluggish, about every 200 rounds or so.

My experiences mirror Outpost75 almost exactly. It took a lot of rounds (100s) before any noticeable deposits were accumulated in my rifle and I didn't clean them out until after about 1000 but even then everything was still functioning.

[Gunnut 45/454]

I too use the same Lee boolit in my 300 Blk, Rem 7400 and SKS. Just wipe ALOX on them before seating. Zero leading shooting them all the way up to 2305 fps in the 7400!:bigsmyl2:

[jonk]

If you're getting lead deposits on your piston or anywhere in the gas system you're not doing something right.

To the question, I've run plenty through my SKS with 14.5gr of 2400 and the Lee 155 gr bullet without issue.

[Echd]

Not gas guns strictly speaking as they're piston, but LLA + lee c312-155 on 14.5 of 2400 like Jonk above runs perfect, ejects well, shoots clean in my SKS and AKs.