45 Schofield is similar to the 45 Colt. Differences include head diameter approximately .010" larger, a case length of 1.090" to 1.100" compared to 1.273" to 1.283" in the .45 Colt. Substantially less internal capacity for shooting light loads in most 45 Colt guns with no modifications. Some fine tuning of the firearm may be needed.
Starline is a family owned business and prides itself on producing the highest quality brass case available. With a production process focused on quality not quantity, Starline makes the finest brass and has for more than 40 years out of their state-of-the-art manufacturing facility in Sedalia, MO.