• All my experience is with IMR 4198 and Ramshot TAC. TAC flowed and metered somewhat better, but 4198 grouped much better, shot softer and still left the gun cleaner. AndI checked out Hogdon's relative burn up fee chart & H335 appears for being a great deal faster than CFE. Varget and BL-C2 appear to be much like CFE with regards to burn up rate