I have had super luck with Speer Reduced Hazard Training, RHT, in my 1911. I also think that LFS is Lead Free Solid, probably a solid copper bullet. Solid copper was all the rage a few years ago, but was swiftly removed from the market because of bounce-back problems when fired at steel plates. I have been hit in the head with copper bullets that bounced off of steel targets. Thank God for my safety glasses, and that the bullet wasn't going all that fast when it thumped me. I was probably 50 feet from the target, too.
Winclean is Winchester's answer to removing airborne lead at the firing point. I am not sure if that bullet is still a lead core affair. Winchester does make a nice frangible round, which has a brown colored bullet. It breaks up nicely when fired against steel plates, but is not as accurate as the Speer stuff. Hunting Shack should have both kinds.
There are really two kinds of ammunition in question here:
1. Lead Free. This means no lead in the priming mix, bullet, or anywhere else. This ammo is most typically used in an indoor training range, where lead emissions are a concern. Range clean up is minimized, and airborne lead is not a problem. Speer RHT meets this requirement with a special bullet that breaks up into tiny pieces upon impact, and a special primer. Winchester Frangible does the same thing.
2. Lead-free primers. These primers do not contain lead styphnate or any derivative of lead used in explosive chemistry. The bullet is sheilded from the propellant gasses by a gas check, disk, plating, or other means. No hot gasses can erode lead from the bullet base (like an FMJ with exposed lead at the base) and pollute air at the muzzle of the weapon. During impact, the bullet may deform, smash, or otherwise come apart, but that problem is down range, not at the shooting point. I think Winclean may be this type of ammo. Federal has Ballisticlean, Remington has Super-Unleaded (I'm not positive about the Remington, it may have a lead-free bullet), and Speer has Lawman Cleanfire.
If there are questions about lead free ammo, start a new thread, and I'll tell you all I can.
Regards,
Slim