Originally Posted by freebird63
I was suppose to go out shooting this morning, but came down with some nasty bug last night and in no way did I feel like dragging all my stuff out to the hot desert. So if all goes well today and I feel better will go out tomorrow morning, will test what I have loaded and see if that made any difference, if they are still very large groups will take some pictures and post them for everyone to comment on.
How Hot is it in your neck of the woods ?
I've just went down the same road your going down with my 300 RUM shooting the 210 Bergers . I was trying to get all of the MV that I could . I eventually got tired of big groups running mock ten. So I went back and loaded my best but not the fastest load and tried it out to 333 YRDS and it performed well for me. I had two good loads so i'll share them with you if thats okay.
1. 85.5 grains of retumbo .020 off the lands fed 215m primer 333 yrd 3 shot group measured .619
2. 87.0 grains retumbo .020 off the lands fed 215m primer 200 Yrd 3 shot group .730
The temperature was 93 degrees the time of day was One o clock .
Have you tried some low powder charges yet ? I agree with alot of folks on this site when they say that the faster you can run them the better but i just cannot reach the same accuracey potential with my rifle running them fast.