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Rifles, Reloading, Optics, Equipment
Reloading
.260 load pressure problem
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<blockquote data-quote="WildRose" data-source="post: 471655" data-attributes="member: 30902"><p>I went through a similar problem years ago with a model 70 which had originally been chambered in (if I remember right) .222 rem mag then cut and rechambered to 220 swift.</p><p> </p><p>My problem turned out to be that the freebore portion of the throat was a little too short which resulted in the bullet when chambered being in contact with the riflings already producing exactly the same pressure problem and result you are seeing.</p><p> </p><p>It also sounds like you didn't follow Kreiger's recommended break in cleaning regime and you may well have some built up brass in the throat of the chamber.</p><p> </p><p>I'd have a long talk with my "load guy" and find out what he did to properly break the barrel in before working up the load.</p><p> </p><p>I'd also have a good gun smith go over it with a fine tooth comb and mic everything out to see for sure if the chamber is correct.</p></blockquote><p></p>
[QUOTE="WildRose, post: 471655, member: 30902"] I went through a similar problem years ago with a model 70 which had originally been chambered in (if I remember right) .222 rem mag then cut and rechambered to 220 swift. My problem turned out to be that the freebore portion of the throat was a little too short which resulted in the bullet when chambered being in contact with the riflings already producing exactly the same pressure problem and result you are seeing. It also sounds like you didn't follow Kreiger's recommended break in cleaning regime and you may well have some built up brass in the throat of the chamber. I'd have a long talk with my "load guy" and find out what he did to properly break the barrel in before working up the load. I'd also have a good gun smith go over it with a fine tooth comb and mic everything out to see for sure if the chamber is correct. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.260 load pressure problem
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