I typically see about 70-75% of rated(10" barrel)velocity from my 4" 357 using H110. Looking through the VV manual your XTPs appear to be in the 85-90% range which is fantastic!
Last time I was in the LGS I almost picked up can of N110 but ended up with IMR4227, AA1680 and 4100 instead. I know what I'm going to try next though.
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