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Rifles, Reloading, Optics, Equipment
Reloading
.243 AI Loading Question
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<blockquote data-quote="westcliffe01" data-source="post: 790033" data-attributes="member: 35183"><p><span style="color: Blue"></span></p><p><span style="color: Blue">I started out with a load of 44.0, because on the back of the Powder can it showed a load for the .243 and the 100gr @43.7C However the berger book showed a max load of 41.0</span></p><p><span style="color: Blue"><span style="color: Black">The loads apply to the 243 Win, not the 243AI. Generally it is expected that one can get about 10% more powder into an AI so 41+4.1 = 45.1 is roughly what you should expect (in fireformed brass) for a max load.</span></span></p><p><span style="color: Blue"><span style="color: Black"></span></span></p><p><span style="color: Blue"><span style="color: Black"></span>I cant seat my bullet out to touch the lands, is that normal for the berger or is it a chamber issue?</span> <span style="color: Black">You don't say why that is ? Does it not fit into the magazine or would not enough bullet be engaged in the case ? The latter sounds rather unlikely to me ? Perhaps you need a longer magazine or go to single shot to get the advantage of being able to seat the bullet longer ? That will reduce pressure and increase the max load. Having said that, I am loading the 95gr Bergers to the 2.71" overall length and shooting 0.5" at 100 yards while fireforming the brass</span> with a 41gr load. I have yet to load into the formed brass, but all of those loads will be with 105gr bullets in my case, not 95gr.</p><p></p><p>Have you done everything you can to improve your base rifle ? Bed the action, ensure barrel is free floated etc etc ? No point in blowing up your rifle with max loads when all the mechanical aspects are not yet perfect. The heavier the load, the more perfect the bedding etc needs to be to allow the rifle to group well.</p></blockquote><p></p>
[QUOTE="westcliffe01, post: 790033, member: 35183"] [COLOR=Blue] I started out with a load of 44.0, because on the back of the Powder can it showed a load for the .243 and the 100gr @43.7C However the berger book showed a max load of 41.0 [COLOR=Black]The loads apply to the 243 Win, not the 243AI. Generally it is expected that one can get about 10% more powder into an AI so 41+4.1 = 45.1 is roughly what you should expect (in fireformed brass) for a max load. [/COLOR]I cant seat my bullet out to touch the lands, is that normal for the berger or is it a chamber issue?[/COLOR] [COLOR=Black]You don't say why that is ? Does it not fit into the magazine or would not enough bullet be engaged in the case ? The latter sounds rather unlikely to me ? Perhaps you need a longer magazine or go to single shot to get the advantage of being able to seat the bullet longer ? That will reduce pressure and increase the max load. Having said that, I am loading the 95gr Bergers to the 2.71" overall length and shooting 0.5" at 100 yards while fireforming the brass[/COLOR] with a 41gr load. I have yet to load into the formed brass, but all of those loads will be with 105gr bullets in my case, not 95gr. Have you done everything you can to improve your base rifle ? Bed the action, ensure barrel is free floated etc etc ? No point in blowing up your rifle with max loads when all the mechanical aspects are not yet perfect. The heavier the load, the more perfect the bedding etc needs to be to allow the rifle to group well. [/QUOTE]
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.243 AI Loading Question
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