[quote=Mule Deer]A few comments on this thread so far:
Some rifles are possessed by demons. Have run into a few over the years, including a couple that even really good accuracygunsmiths couldn't find any reason for shooting erratically. If a rifle is still throwing fliers after trying all the normal fixes, from the simple stuff like changing scopes to total "accurizing," it may be one of those.
Sometimes the threads in the barrel/action connection aren't quite right, which is why on occasion free-floating the barrel doesn't work, and pressure points do.
I would not keep a rifle that only grouped one particular bullet well, much less one that only responded to one powder/bullet combination--especially a powder that isn't particularly temperature resistant. Chances are it won't always shoot well in varying conditions, or even with another manufacturing lot of bullets or powder.
Diagnosing accuracy problems through descriptions on the Internet is difficult--unless the problem is simple. It doesn't sound like this one is.
Never really though about why once in a while a gun like barrel pressure , guess now I know
Last edited by ldholton; 04/04/17.
