compression/velocity

[Old Jim]

Many times more velocity is not the cure-all to getting a rifle to group well. Different bullet shapes and lengths and lubricating methods, along with a PROPER chg, the said chg. may be less than what the shooter wishes to try. A small amount of compression can work well with one bullet, where a moderate to hvy amount will group much better with a different one.
The joys of finding what works well in your rifle!
Jim