I hope to let you know after Saturday (I am trying to go shoot then). I have some 180 NBT and 168 Combined Tech BT both over various charges of RL 25 and Retumbo. I have a Chrony and will let you know the results... I have tried (very little) 180 NBT over H-1000 with out good results. I admit I didn't "play" with this load enough to rule it out... yet...
Same here I've worked with some 180gr nos btips with fairly good accuracy, but from what im reading up on anything under 190gr is taking away from the 300ultra.
I have heard that also, I do have some 200 g accubonds. I have not loaded any yet. I am thinking this might be the trick over a lot af retumbo or RL 25... I do have a 1 in 10, 26 inch barrel.
If you want take a look over at snipershide or snipersparadise forums,you may find some good starting loads for the 300ultra.Unfortunately I'm limited to 300yds shooting where I live so i spend more time with my 308s and 300wm.
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