Good question -- just like jacketed bullets come in all shapes and sizes, so do cast boolits. Take a look a the mould charts in this thread:
http://www.msgunowners.com/reloading-ammunition-f11/boolit-mould-charts-references-t1645.htm
I don't know if the SWC is the preferred boolit for the 45ACP ... I guess it is somewhat of a personal preference. Boolits moulds should be selected based on some criteria; such as:
Boolit choice -- weight/style:
1. Intended purpose for the boolit - target, hunting, etc
2. In autos - what feeds best in your weapon
I have both SWC and RN moulds for almost all my autos - got SWC, WC, and RN for most of the revolvers -- each has its place and purpose.
http://www.msgunowners.com/reloading-ammunition-f11/boolit-mould-charts-references-t1645.htm
I don't know if the SWC is the preferred boolit for the 45ACP ... I guess it is somewhat of a personal preference. Boolits moulds should be selected based on some criteria; such as:
Boolit choice -- weight/style:
1. Intended purpose for the boolit - target, hunting, etc
2. In autos - what feeds best in your weapon
I have both SWC and RN moulds for almost all my autos - got SWC, WC, and RN for most of the revolvers -- each has its place and purpose.