Re: 300 RUM Ack Imp
Thanks for the info. I've still got a pound of discontinued H870 left (one of the techs at Accurate Arms told me that AA8700 it's exactly the same thing, but I recorded different velocities with AA8700 than H870--maybe just a different lot)but I wasn't real impressed with it in the 300RUM with 200 Accubonds. Those were probably too light a bullet and a 26" barrel doesn't help either. Retumbo seems to have done better in my rifle with the 180's and 200 Accubonds.
I do like the idea of the apparently longer barrel life with the ball powder (WCC 872, I think? being another one that might work well?), but am concerned about some of the stories I've heard of pressure spikes at certain temps, etc. Do you keep your rounds in a cooler if it's over 50? Most of my hunting will be well below that though.
BTW, would you mind giving me some of your load data from the 300 Tomahawk? Bullets used, seating, powder charges, etc. How much volume did you gain over the 300RUM case with the Tomahawk? Seems to be some differences of opinion on that question so I'm curious to talk to folks that actually have a 300 Tomahawk.
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