kBob
Member
So right off the bat let me say I do not want to hear "Forget those things and buy a dedicated upper or entire dedicated .22 rifle!" I am aware of those options and chose to have a BCG replacing .22LR adaptor (mine happens to be and Olympic Arms that uses M261 style magazines)
I have heard the "I think" and "well it seems like" and the "every body knows"
lines about
1. "only use copper clad type ammo"
2. ".22 ammo will so lead your bore that you will have no accuracy when switching back to .223"
3. ".22 ammo will lead up your gas tube so bad it will effect .223 reliability"
4. "just shoot a round or two of .223 full powered jacket ammo for every X number of .22LR"
Now I am not looking for opinions (I have heard a lot and shared as many myself) but has anyone or some agency ACTUALLY published data to support any of these issues?
I have always wondered how firing a round or two off .223 is supposed to clear leading and powder residue from the gas tube and where such fouling goes when one does that. The gas key on the BCG is even more restricted and fires into the carrier itself and onto the bolt and then out the two vents in the bolt carrier one sees in the cut out for the rifles ejection port cover. I suppose it might be easier to clean lead off and out of the bolt carrier, bolt. and upper receiver than the gas tube.
-kBob
I have heard the "I think" and "well it seems like" and the "every body knows"
lines about
1. "only use copper clad type ammo"
2. ".22 ammo will so lead your bore that you will have no accuracy when switching back to .223"
3. ".22 ammo will lead up your gas tube so bad it will effect .223 reliability"
4. "just shoot a round or two of .223 full powered jacket ammo for every X number of .22LR"
Now I am not looking for opinions (I have heard a lot and shared as many myself) but has anyone or some agency ACTUALLY published data to support any of these issues?
I have always wondered how firing a round or two off .223 is supposed to clear leading and powder residue from the gas tube and where such fouling goes when one does that. The gas key on the BCG is even more restricted and fires into the carrier itself and onto the bolt and then out the two vents in the bolt carrier one sees in the cut out for the rifles ejection port cover. I suppose it might be easier to clean lead off and out of the bolt carrier, bolt. and upper receiver than the gas tube.
-kBob