(03-19-2022, 01:40 AM)r.tenorio671 Wrote: ....in a previous post I detailed my pressure tests with W748 & 105 RDF's and 8208XBR & 70 Varmageddons. Both worked quite well and no pressure indications.
....if you load for other calibers with any of the powders you listed, and you have some on hand, it would be worth your time to test with it once you complete your build and before you purchase a powder "unseen". Hodgdon's "Load Data Center" has an extensive list of powder/bullet combinations you can refer to, pay particular attention to a powders pressure rating (shown for MAX charge).
...LVR & CFE right now are "generally" aknowledged as the "kings of speed" if that is your goal, but for some folks the other aspects (temp sensitivity, clean/dirty. etc) are factors in their consideration, YMMV.
I do have TAC and was planning on that first, but I'd like to also give Varget or W748 a try, at least I have a fighting chance of locating those locally if my timing is right.
I'm not too thrilled with what I've heard about LVR being really dirty and temp sensitive so I'm hesitant on that. I know someone that uses it so maybe he will spare me a bit for a workup if I ask nice.
With a 103gr Hornady all three powders show 2500ish fps at 10%+ below Pmax but obviously I'll start lower than that. They all have decent fill ratio and burn rate/ratio, it will probably just a matter of luck which I stumble across first.
Honestly I plan on sticking to 103/5/9 bullets because if I want something lighter I already have those choices in the same and other platforms. Also this is going to be an exercise in putting a "heavy" bullet down accurately and repeatably.
I don't have bullet jump or H20 capacity and some other details yet but things look quite promising so far.
SI VIS PACEM, PARA BELLUM