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Hunting
Long Range Hunting & Shooting
Barrel break in accuracy
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<blockquote data-quote="Tex_Hunter" data-source="post: 2459980" data-attributes="member: 31749"><p>I dont even bother with handloads until I get 100+ through a new barrel. I tend to watch the chrono numbers of known "good" factory ammo and use that as my rule of thumb for when a barrel is "ready". I've seen velocity increase and SD/ES stabilize considerably for up to 100-150rds on some new barrels. Group size isn't always affected though, my bet is that your new barrel just didnt like the load you fed it.</p><p></p><p>My Rock Creek 6.5mm settled down around 110-120, group size stayed the same at ~.5-.6MOA with factory ammo but I did notice the groups were more consistent. My 6mm Kreiger was the best as far breaking in quickly it calmed down around 80 (velocity jumped 100fps and SD went almost in half using same lot of Hornady Precision Hunter), again no real impact on group size, its a solid .2-.3" rifle with that ammo.</p><p></p><p>I have two other rifles both wearing Bartleins that I havent gotten a chance to re-chrono but expecting they will be similar to the other two.</p></blockquote><p></p>
[QUOTE="Tex_Hunter, post: 2459980, member: 31749"] I dont even bother with handloads until I get 100+ through a new barrel. I tend to watch the chrono numbers of known "good" factory ammo and use that as my rule of thumb for when a barrel is "ready". I've seen velocity increase and SD/ES stabilize considerably for up to 100-150rds on some new barrels. Group size isn't always affected though, my bet is that your new barrel just didnt like the load you fed it. My Rock Creek 6.5mm settled down around 110-120, group size stayed the same at ~.5-.6MOA with factory ammo but I did notice the groups were more consistent. My 6mm Kreiger was the best as far breaking in quickly it calmed down around 80 (velocity jumped 100fps and SD went almost in half using same lot of Hornady Precision Hunter), again no real impact on group size, its a solid .2-.3" rifle with that ammo. I have two other rifles both wearing Bartleins that I havent gotten a chance to re-chrono but expecting they will be similar to the other two. [/QUOTE]
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Barrel break in accuracy
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