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Rifles, Reloading, Optics, Equipment
Reloading
.308lap brass to 7-08ai
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<blockquote data-quote="MudRunner2005" data-source="post: 1048287" data-attributes="member: 12995"><p>If you get a snug bolt close, then your brass fitment should be just perfect for fireforming. If the shoulder/neck junction isn't tight like that, you will want to run a reduced load (about 75% of book starting load) of your powder of choice, and seat the bullet press-fit into the lands, that way it keeps the head of the brass seated firmly against the bolt face and when the brass expands it will properly fill the chamber and properly form to your chamber.</p><p> </p><p>But, since your brass closing has some resistance, I would say you wouldn't have to worry about that. Personally, I still use cheap bullets (Hornady Interlocks) and powder I don't use for anything but fire-forming for my Ackleys (RL19), and cheap CCI primers, and if it's a non-belted caliber, I always use the reduced load with the bullets seated to the lands method. If it's a belted case, then I still use a reduced load, but I don't have to seat them into the lands, because belted cases headspace off the belt, and non-belted cases headspace off the shoulder, which is why you have to seat the bullet into the lands and use a reduced load while forming brass for them.</p><p> </p><p>Also, if your dummy rounds fit in the chamber just fine, then I see no reason to turn the necks.</p></blockquote><p></p>
[QUOTE="MudRunner2005, post: 1048287, member: 12995"] If you get a snug bolt close, then your brass fitment should be just perfect for fireforming. If the shoulder/neck junction isn't tight like that, you will want to run a reduced load (about 75% of book starting load) of your powder of choice, and seat the bullet press-fit into the lands, that way it keeps the head of the brass seated firmly against the bolt face and when the brass expands it will properly fill the chamber and properly form to your chamber. But, since your brass closing has some resistance, I would say you wouldn't have to worry about that. Personally, I still use cheap bullets (Hornady Interlocks) and powder I don't use for anything but fire-forming for my Ackleys (RL19), and cheap CCI primers, and if it's a non-belted caliber, I always use the reduced load with the bullets seated to the lands method. If it's a belted case, then I still use a reduced load, but I don't have to seat them into the lands, because belted cases headspace off the belt, and non-belted cases headspace off the shoulder, which is why you have to seat the bullet into the lands and use a reduced load while forming brass for them. Also, if your dummy rounds fit in the chamber just fine, then I see no reason to turn the necks. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
.308lap brass to 7-08ai
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