Saddle Tramp if you can't manage dropping bullets into a bucket filled half way with water then you ought not to be casting. It is not rocket science. You just have to be careful to have the bucket away from your lead pot. Mine sits to the right of my chair and is about 3' from the pot and about two feet below the level of my RCBS Pro Melter. Alternately you can harden them by using the oven treatment described above. Both work effectively.
As to tin, it does harden bullets but not cost effectively. As others have pointed out it will allow for better mold fill out but that is about it. Antimony is the primary hardening agent in the alloy. For rifle and pistol Wheelweight alloy works well for virtually all applications and does not require hardening. Some will argue that for pistol applications and some rifle softer alloys work better as the bullet obuterates at softer levels providing a tight gas seal which reduces or eliminates gas cutting - the primary cause of leading. Using a soft lube over a hard lube also seems to reduce leading as well in most applications.
Take Care
Bob
