Originally Posted by Down Under Hunter
Howdy all !
I have a friend who is setting up a long range 338. He has a HS pro hunter in 338 rum that he is single loading with 300 smks over H 1000. He is running 94 grns out of a 26" barrel for 2802 fps. I think really fast out of that much barrel ?
Groups at 100 are inconsistent and sometimes tight to open the bolt.
He plans on dropping back to 92-93 grns. His OAL was 3.79 which is long and he thinks this could be giving pressure problems.
Do any of you load 300 smks in the 338 RUM ? If so what loads have worked for you ?
That is a tough load for the 338 RUM !!!
For the 300gr SMKs I use H 869 and get 2750 but no pressure signs.
I use the 250gr Accubonds @ just over 3000 ft/sec and get great accuracy with a 26" tube.
The 300grain bullets benefit from more barrel (28" to 30") with slower powder.
In my "opinion" he is on the edge and should back off the load a little or change to a slower
J E CUSTOM