For those whom might like such data, here it is.
In previous range outings, my 1899-B with 26" octagon barrel registered 2166 fps with Varget and 180 gr Sierra round nose bullets.
Recently acquired a 1926 99TD F with 20" tube, chronoyed today and got 2004 fps. The old rule of thumb says aprox 25 fps per inch, wich is perty dern close to what I got. I got lucky in the respect both love the same load. Thats nice so I don't have to have multiple loads for my 303s. My 5 shot group was 2.5 inches. At 100 yards peeped, I couldn't be more content. Good outing, and actually learned a thing or two.
