Howdy Gents
I only have one 'real' Colt. It is a 3rd Generation mod.P in .45 Colt. A few years ago I sent it off for an action job and to have a set of real Elephant Ivories fitted. I don't shoot it a lot as I have a non-Colt or two so I keep it as my BBQ gun. I'll attach a picture.
Macon Due SSS 850.

Two flints
 If it was me ,I'd ask for the exact same mold [ the # 45-240E] to be used also in the .45 S&W..... I asked for it to cast a .452"-.453" bullet out of wheel weight material. it says the 'meplat' is .18 but in reality it runs closer to .202-.205". If a person wanted it a bit larger in diameter I might ask for a 'meplat of .222" in which case I would also ask for the bullet weight to be increased from 240g to about 255 grains  cast from wheel weights with the extra weight in the nose length. In other words increase the length of the bullet but with the body of the bullet remaining the same length as it is now and the increase in overall length being in the nose. The reason for this being to ensure I did not end up with a less gently tapered , more stubby bullet than desired to function correctly.
Hope this helps.
Macon Due #850

  My pleasure Sir. For more than 10 years I've been in my own fight with my Armi Sport .44 Russian Spencer carbine imported by Taylor's. Polishing all mating surfaces only lead to a very nice action cycling. Until the magazine was loaded; fully or even partially. At that point I was so disappointed that a trot line weight was not out of the question. This last year I started working with bullet ogive, meplat and overall length from crimp groove to nose. Looking through period ammunition catalogs with line drawings of Spencer small frame carbine .44 centerfire ammunition (essentially .44 Henry Flat),  I started looking for available cast bullets. The first was from an old style Lyman .44-40 mould with a .427 diameter. Accuracy was excellent but, feeding was 'jiggy' at best. That company is gone now, so with the help of my good friend and gunsmith Bryan Buck we went searching the Accurate Moulds site and selected a possible replacement. By gawd Woodrow the choice is a Dasiy! The double cavity mould throws beautiful castings. Lubed and sized for my .427 bore accuracy is outstanding. But even more importantly the Spencer action works perfectly with a full magazine from start to finish. Cat fishing is now out of the question. 
   

Macon,

When you write .  .  .  "I followed his footsteps"  .  .  .  would you go into more detail as to what you meant by "his footsteps"?

Might be helpful to others with a .45 Schofield Spencer.

Two Flints

Johnson Barr
You are 100% correct about that. I am so thankful that you told how a correct bullet had cured yours! I was at the point of near giving up and now it is a joy to own & shoot.
Thank you, Sir.
Macon