22" vs. 24" vs. 27" barrel; velocity differnce on a .260?

[scottl0000@hotmail.com]

I'd appreciate any input folks might have on this! I was wondering if someone/s out there might have an idea of how much of a velocity loss there's likely to be if I have my 27"-barreled .260 using 140 gr. bullets reduced to either 24" or 22". Thanks for any info!