Congrats on getting into reloading. Many of us are jealous at the fun involved in learning all the things as you work up over the learning curve. It’s ironic that reloading is at an all time low, while the resources and equipment available are at an all time high.
You’ll find different rifles are stabilizing bullets better or worse, but also some of those on the ragged edge with a heavy bullet shoot fine up close and at range the bullet goes wonky and isn’t worth a damn. It’s the joy of tinkering. The 22-250 and fast stepping explosive 55 gr bullets is such a great small varmint combination it’s hard to improve on, but I can see a fast twist replacement barrel in your future. What you’re learning about pushing the limits of the 1:9 twist are well worth it in the mean time.
With all the new chronographs on the market, there are many really good older models just sitting on shelves going unused. If you keep your eyes peeled one may fall in your lap for not much more than shipping. I’ve seen a few this past year that were offered up to a good home that way. The accuracy of any of the popular optical models has been quite good, but they are more susceptible to the angle of the sun and take longer to set up. It’s always amazed me that in terms of electronics, measuring velocity is quite easy. Of course electronics don’t last forever, so be careful with guys selling 30 year old models for 10 year old prices.
Keep up the good work.