I’ve been tinkering with my .22 Taipan standard Veteran 1, swapping barrels, installing a plenum and having a lot of fun In the process. It was a laser with the stock barrel shooting 18 and 20 grain pellets. It even did well with 22 grainers too. Then I found a couple used barrels, a 550mm and a 700mm, which I installed so I could get a feel for what they could do. The 550 was stacking 22 grain AEA and JTS’s at 50Y but shot the heavier 25 and 28 grain MRD pellets poorly. Then I added a 2” plenum to the 700 barrel. Here are some numbers and the quick target I shot today with the 700 @ 50Y just to get some crono numbers. I think this combo has some potential to shoot heavier lead.
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