7mmfreak
I found that 60gr of N120 was hard to beat but my bore was tighter. I had to use the MMP Orange sabot instead. Sizing the 458s down to .454 also worked great with the Harvester Black CR in mine.
63gr of Reloder7 worked great too but its not nearly as clean as N120. It is far easier to find though. 63gr of Reloder7 gave similar speeds as roughly 58gr of N120. In the 2100-2150fps range IIRC.
The thing i really loved about N120, it does work with 250gr bullets if you want a 2500fps load. You need around 65gr+ to get there. I never tried it in really cold temps to see if it was reliable but a few others claimed it was.
Last edited by Overkill45; 10/10/14.
