Capt, nope can't help ya there. I have only shot 180g and 200gr bullets out of my 300RUM. I reserve the Re25 and Retumbo for 200gr and use H1000, and use 4350 and H1000 and Re22 for 180.

How is your accuracy with 125gr bullets? I thought that 1 in 10 twist might be a little much for that. I bet that sucker is movin on.