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Thread: Barrel Maker John Krieger on Barrel Break In, Cleaning, Lifespan, Optimal Length & Ef

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    Barrel Maker John Krieger on Barrel Break In, Cleaning, Lifespan, Optimal Length & Ef


  2. #2
    Boolit Buddy
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    As a benchrest shooter, I have gone through many barrels in the past 20+ years. I have tried just about every barrel made in the US. I am a believer in a break in process, some are adamantly against it. For the most part, barrel break in laps the throat/leade where the reamer cut it, but does condition the rest of the barrel to be the same.

    The amount of break in varies, in my opinion. The premier short range benchrest cartridge, the PPC, doesn't need a lot of work, the case is small, the twist isn't fast, and it goes quickly. But if you shoot long range, and use big cartridges with long bearing surface bullets and fast twist barrels, then the process needs to be done in a slower manner. Take your time, be sure to get all the fouling out before shooting again. Copper fouling will build upon itself and worsen the process. These are my findings based on my experience, others will have other thoughts.

    Make no mistake, every barrel maker can make great barrels, but each and every one of them make bad ones too.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check