... and just happens to work really well with 150's in the .270. But a look at the other published data for RL-26 doesn't show any startling velocity increases in other applications, except perhaps the .243 Winchester with 100+ grain bullets.
It seems like it is one of those magic combinations that sometimes just happen.
The reason for asking is that I have had very good accuracy with Sp12 and the loads published in your book for 130gr and 140gr bullets, but the speed was not there. I now want to develop a load for the 150gr ABLR for a future hunt and had to decide whether to start working with Sp12 or try to lay my hands on some R26, if I find it!
