I got caught short on time this morning or I would have posted these numbers then, but better late than never.
Food for thought,
Composition of various alloys, the COWW (clip on wheel weight) is pretty close and gathered from a reliable source. That said it might also depend on how many times it may have been recycled.
Anyway here we go,
Description
Super Hard - Tin = 0% Antimony = 30.00% Arsenic = 0% Lead = 70.0% Hardness = Brinell 36
COWW - Tin = .50% Antimony = 3.00% Arsenic = .25% Lead = 96.3% Hardness = Brinell 12
Lyman #2 - Tin = 5% Antimony = 5.00% Arsenic = 0% Lead = 90.0% Hardness = Brinell 15
Hardball Alloy - Tin = 2% Antimony = 6.00% Arsenic = 0% Lead = 92.0% Hardness = Brinell 16
Taking the above, if you purchased the Hardball alloy from Rotometals, and blended it 50/50 with pure, you would end up with an alloy really close to clip on wheel weights. This is based solely on calculations using an alloy calculator I downloaded from CB's. It isn't always exact, but it comes in close enough to usually hit within a point or three of the hardness I am looking for when blending up alloys of known composition.
For the calibers your looking at pouring, I wouldn't worry about getting the super hard, but get the hard ball instead. As for the tin, a one pound roll of 95-5 solder will go a long ways when pouring up 10 - 20 pound pots and adding in a 4-6" strip if needed for fill out.
Go for fit first and see where that gets you. Even using the Lee Alox you should be able to shoot around 80% or more loads from those calibers. Of them all the 9mm will probably give you the most fits. This however is based entirely on what I read as I do not have but one pistol in that range and it's a .380 that I don't cast for. If I shot it more than about 10 times a year I might, but it is a nightstand thing so it gets cleaned and oiled more than shot.
I shoot .38 SPL, .357, 41 and 44 mags, 45 ACP and a 454. Other than the hot loaded 300gr GC'ed 454 bullets everything else is plain based, and most everything including the 454 is tumbled lubed. I am playing around with a couple of bullets for the 357's and 41's and dip lubing with some Carnuba Red from White Label Lubes with great results, but I have only shot 50 or so rounds from each. As mentioned the lube can make a difference, but with 95% of my loads the Alox or actually the 45-45-10, has done a great job. You can also pick up the 45-45-10 from White Label Lubes already blended up as well.