I went out today and put these up against some berry's 180gr FPs.
I shot 4 strings of 10 shots for each with different loads of blue dot. The best string of the Rainier's gave me a 7.22" group, which, seemed loose to me. But the berry's won the day with a 4.7" group on my winning load. In fact, all but one of the berry's loads wer smaller than the best Rainier load, but the worst Berry's load was the worst of all. The best part of the Berry's is that the average to center of each group was even better, with a tight main grouping and a few outliers, likely caused by my gun handling. the Rainier bullets were pretty evenly dispersed.
lucky for me, I guess, since I have about 50 more rainier and about 210 more berrys.