clockwork65
New member
Years ago I recall guys talking about how mono copper bullets fouled barrels much quicker than bonded, etc. I'm assuming, given the current popularity of monos, that this is no longer the case due to new tech/design?
Not really. Most have jackets made of "gilding metal" a copper alloy similar to brass, which is 95% copper and 5% zinc. Gilding metal fouls much less than copper.All standard bullets have copper jackets.
The alloys of TSX and jackets are different, but I think what causes the notable fouling is the higher velocity of the solid bullets, Tsx, Ttsx, Gmx, etc. Most move way down in weight when they go to a Tsx. With that weight drop comes velocity and more fouling.I doubt if that were ever a real problem. All standard bullets have copper jackets. The barrel doesn't know if it is a copper jacket or solid copper. As near as I can tell some rifle barrels foul with copper more easily, but I don't see the bullet as the cause.
Perfect Art. A new barrel will foul more until it's groves (not lands) are sweetened. That's a little old school term for the somewhat inaccurate term of today "broken in".Ablation occurs at the throat, but since accuracy degrades with that, barrels are replaced long before any ablation occurs "downstream" from the throat.
Shooting is lapping, just in normal usage. Whether lead or gilding metal, the bore gets polished.
As stated - ablation also occurs at the muzzle, at roughly a 1/3 rate of the throat.Ablation occurs at the throat, but since accuracy degrades with that, barrels are replaced long before any ablation occurs "downstream" from the throat.
Shooting is lapping, just in normal usage. Whether lead or gilding metal, the bore gets polished.