FoxFlopper wrote: ↑Fri Oct 01, 2021 9:57 am It was interesting to see the difference between 27.8, 27.9 and 28gn as shown in k22s targets.
I've been pondering the case size and the different effect small changes might make ..seems very small changes.0.1gn can make all the difference..from those pictures...
I wonder if same "velocity nodes" might work for different weight bullets...I'm dubious
Those are some very decent targets FoxFlopper. I would be quite satisfied with the accuracy. Is 2208 powder the equivalent of 8208? IMR 8208 is all I use in 17 Rem., 204, and 223. I have not found any other powder that gives me that kind of accuracy.............so far. I know BillK loves CFE223 I want to try some in the near future.
Yes, .01 grain when running close to max does seem to make a big change in group accuracy. The 27.9 load is just absolutely consistent in accuracy in my 204. As an experiment I had 2 other fella's shoot for groups and all 3 of us shot just under .5" at 100yds, 5 rounds. Interesting was the fact that the poa was slightly different between us 3 shooters, but the group size stayed the same.
When I first bought the Kimber I had thoughts of skim bedding it, not trusting the factory bedding job. After working up loads for it I was sure impressed that it didn't seem to be in need of any skim bedding.