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Hunting
Long Range Hunting & Shooting
Breaking/Sighting in Hunting Rifle
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<blockquote data-quote="goebs66" data-source="post: 1092191" data-attributes="member: 90641"><p>Thanks for the input. Check this out:</p><p>As a barrel maker I have looked in thousands of new and used barrels</p><p>with a bore scope and I will tell you that if every one followed the</p><p>prescribed break in method A very large number would do more harm than</p><p>help. The reason you hear of the help in accuracy is because if you</p><p>chamber barrel with a reamer that has a dull throater instead of cutting</p><p>clean sharp rifling it smears a burr up on the down wind side of the</p><p>rifling. It takes from 1 to 2 hundred rounds to burn this bur out and</p><p>the rifle to settle down and shoot its best. Any one who chambers rifle</p><p>barrels has tolerances on how dull to let the reamer get and factories</p><p>let them go longer than any competent smithe would. Another tidbit to</p><p>consider, Take a 300Win Mag. that has a life expectancy of 1000 rounds. </p><p>Use 10% of it up with your break in procedure for ever 10 barrels the</p><p>barrel maker makes he has to make one more just to take care of the</p><p>break in. no wonder barrel makers like to see this. Now when you flame</p><p>me on this please include what you think is happening to the inside of</p><p>your barrel during the break in that is helping you.</p><p></p><p>Gale McMillan</p><p>NBSRA IBS,FCSA and NRA Life Member</p><p></p><p></p><p>I was talking about his comment that after a certain number of rounds the barrel settles in and starts shooting its best... I didn't mean my question in the "cleaning the barrel break in sense".</p></blockquote><p></p>
[QUOTE="goebs66, post: 1092191, member: 90641"] Thanks for the input. Check this out: As a barrel maker I have looked in thousands of new and used barrels with a bore scope and I will tell you that if every one followed the prescribed break in method A very large number would do more harm than help. The reason you hear of the help in accuracy is because if you chamber barrel with a reamer that has a dull throater instead of cutting clean sharp rifling it smears a burr up on the down wind side of the rifling. It takes from 1 to 2 hundred rounds to burn this bur out and the rifle to settle down and shoot its best. Any one who chambers rifle barrels has tolerances on how dull to let the reamer get and factories let them go longer than any competent smithe would. Another tidbit to consider, Take a 300Win Mag. that has a life expectancy of 1000 rounds. Use 10% of it up with your break in procedure for ever 10 barrels the barrel maker makes he has to make one more just to take care of the break in. no wonder barrel makers like to see this. Now when you flame me on this please include what you think is happening to the inside of your barrel during the break in that is helping you. Gale McMillan NBSRA IBS,FCSA and NRA Life Member I was talking about his comment that after a certain number of rounds the barrel settles in and starts shooting its best... I didn't mean my question in the "cleaning the barrel break in sense". [/QUOTE]
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Breaking/Sighting in Hunting Rifle
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