Advantages
-cheaper than fmj
-easier to load than lubed lead
-cleaner shooting
-you can push them faster then lead
-no exposed lead
Disadvantages
- can be difficult to load for compared fmj
Kind of true there's been a big push lately with people loading them to jacketed speeds. With that said you need to start with a lead load numbers and work yourself up. Ill try to look up a thread on cast boolits that people were push rifle rounds to fmj speeds successfully.Miles I agree with everything except pushing them faster than lead. Powder coated, polymer coated and even copper plated should be loaded the same as lead.