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Rifles, Reloading, Optics, Equipment
Reloading
Newbie Needs Help Sizing!
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<blockquote data-quote="JeffP40" data-source="post: 450144" data-attributes="member: 6625"><p>I keep it as simple as possible. I don't use any guage, I use the rifles chamber, just as I use the throat of each rifle to seat the bullets. Full length ensures the brass will fit every chamber out there, but it means nothing to your chamber. I have two 270s, one a fwt,, the other a Colt Light. The Colt and its' brother, my 7mag., both have very minimal chamber specs. I have to set the sizing dies for each a lot deeper than for the Win. which has a typical factory chamber. (It's not a "bad" chamber, just a result of mass-production. with every rifle, I set the die down only enough to go just past bolt resistance. This tells me that I am ensuring good chambering, but not working the brass too much. My brass does not stretch much at all, and even the once-fired stuff I use will chamber fine. Basically, you want to set it up so you are fire-forming each piece of brass to that chamber, and not screwing it up by later sizing too much. The "cam-over" they mention is for the beginner to ensure the brass will fit everything. Almost like shooting factory ammo every time. I even do this with the belted 7mag. There is virtually no difference with them, as the belt was originally developed to give the long tapered cases of the Cordite era some way to acheive proper headspace. When you have a good shoulder, I believe it is best to use it for proper fit. The only reason I can see to bump the shoulder is if you are getting resistance from the bolt. If once-fired brass from a different rifle will chamber fine in yours, then just lightly size it and shoot it. It will then be a good fit for your chamber. If it will not fit without resistance, back out your die and slowly turn it down until you get the right fit. You should be good to go. I hope this helps, it works for me. Jeff.</p></blockquote><p></p>
[QUOTE="JeffP40, post: 450144, member: 6625"] I keep it as simple as possible. I don't use any guage, I use the rifles chamber, just as I use the throat of each rifle to seat the bullets. Full length ensures the brass will fit every chamber out there, but it means nothing to your chamber. I have two 270s, one a fwt,, the other a Colt Light. The Colt and its' brother, my 7mag., both have very minimal chamber specs. I have to set the sizing dies for each a lot deeper than for the Win. which has a typical factory chamber. (It's not a "bad" chamber, just a result of mass-production. with every rifle, I set the die down only enough to go just past bolt resistance. This tells me that I am ensuring good chambering, but not working the brass too much. My brass does not stretch much at all, and even the once-fired stuff I use will chamber fine. Basically, you want to set it up so you are fire-forming each piece of brass to that chamber, and not screwing it up by later sizing too much. The "cam-over" they mention is for the beginner to ensure the brass will fit everything. Almost like shooting factory ammo every time. I even do this with the belted 7mag. There is virtually no difference with them, as the belt was originally developed to give the long tapered cases of the Cordite era some way to acheive proper headspace. When you have a good shoulder, I believe it is best to use it for proper fit. The only reason I can see to bump the shoulder is if you are getting resistance from the bolt. If once-fired brass from a different rifle will chamber fine in yours, then just lightly size it and shoot it. It will then be a good fit for your chamber. If it will not fit without resistance, back out your die and slowly turn it down until you get the right fit. You should be good to go. I hope this helps, it works for me. Jeff. [/QUOTE]
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Newbie Needs Help Sizing!
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