Sounds like a crosswind?....Bob
Quote from: rsterne on February 13, 2017, 10:28:23 PMSounds like a crosswind?....BobThere was some wind, there always is here. I usually do not see that when shooting my .25 cals though, but that may be the cause. I'll have to try again in a couple days to verify it's doing it consistently. I was hoping the .30 cal would help buck the wind a little better than the .25.
That is a good point. Wednesday looks like single digit wind speeds here. I'll take her out that day and that will answer the question as far as the root cause of the lateral grouping, wind or my barrel. I guess the jsb king heavies are what I usually shoot in my .25 cal rifles. Since their BC is the best that is why I don't see so much drift while shooting them in the wind. As far as a bullet shooter, I do have a condor in .257, but I'm still trying to figure that one out. Need to increase the velocity on it which means longer barrel or different valve. I'm sitting on that one for now.
I have found the smooth twist Barrels are more susceptible to wind then traditional rifling
How are you liking it?I'm I thinking about getting a boss or daystate 303.
Hi, I too am interested shooting at 100m using an FX Bobcat and how to maintain tight groups. I wouldn't be so quick to blame your Smooth Twist barrel though as the FX rifles have been prolific top ranking rifles at the Extreme Bench rest competitions (where they also experienced mad swirling wind conditions). Instead I have been researching online an interesting topic of how the tins can have a mix of pellets with varying head sizes and how these can affect grouping especially at long ranges. There is also a "Ted's Holdover video" that discusses this. So I ordered and am waiting for delivery of a "Pelletgage" pellet sizer, which should have a big impact on group sizes.
Hi. From pelletgage.com They do a sizer per calibre