Re: Establishing Peak Accuracy and Barrel Life
barrel wear is not only velocity if you built a table bad / good for barrel life
firing rate slow good fast bad
shot with hot barrel very bad
shoot with very slow coarse powder ( as 5010 ) bad
cleaning without perfect method very bad
use very short neck cartridge bad ( for me )
use over bore ( real over bore as 30.378 Wea in 30 cal ) bad
use solid bullet rather copper jacket / lead core not good
It is sure that long bearing bullet increase barrel wear but for me barrel is the same problem as tire on race car you fit them to get preformance and you just need to have enought life product to get the performane you need .
for barrel I use always swicht barrels when I can ( except glue barrel block ) and I use 3 barrels ( fitted and chambered in the same time
I test fire the three barrels
the baddest is keep for load dev , bullet trial and other trials
the medium is use for practice and windy day
the best is keep for real match shooting
all my rifles have a spare barrel to make load dev or fire forming if I am not able to swicht the barrel I have two old action P14 to fit barrels ( reguler carbon steel barrel) and make fire forming / first load dev without burn true ( and costly ) match barrels .
bullet velocity / barrel lenght is not a real problem with slow powder you need long barrel first to get velocity second to reduce muzzle flash ( keep muzzle pressure low ) to don't disturb the bullet , and just check that your bedding system is strong enought to hold long barrel .
muzzle velocity is not te first problem ,first problem is :does the bullet I shoot is still supersonic on my target .