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Rifles, Reloading, Optics, Equipment
Reloading
264 Win Mags - When would the brass cases be considered "Fire Formed" for each individual action?
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<blockquote data-quote="VinceMule" data-source="post: 3102322" data-attributes="member: 122164"><p>ReLoading for the 264 Win Mag, use H1000 and your barrel life will be greatly extended. Same for N160 and N165 due to how cool the powders burn, with 140s in the 3240 or so FPS on a 26" barrel.</p><p></p><p>I found the best accuracy full length sizing every firing. Make life simple by setting your Full length sizer to where the bolt is easy to close on a case that has very slight resistance in closing the bolt. You have be able to cycle the case easily and quickly for hunting purposes, so just run with what ever Shoulder set back you have to get the bolt to close easily. Monitor brass condition and throw brass away as necessary. </p><p></p><p>Many of the most accurate loads are at Peak Pressure, where either a shoulder bump or a sizing of the web slightly is always needed. Some chambers are cut with a reamer of a smaller dimension or the reamer has dulled slightly from wear, and this creates more difficulty in getting cases sized properly for easy bolt close.</p><p></p><p>If you neck down AGD 7 mag brass, you may have to neck turn, same for peterson. I am an AGD man, myself. Also, when you neck down, you also have to be aware that doughnuts can form, cut the doughnut out with a K and M mandrel that has a cutter on the end.</p><p></p><p>I shoot Winchester brass, and it is smaller in the web than AGD, but AGD takes more pressure...choose your poison.</p><p></p><p>AGD has a different internal case capacity, vs Rem and Winchester, loads do not interchange, and I have a different Full Length sizing die for each brand of brass. Old RCBS dies, marked '79 and earlier have smaller dimensions than any redding die or forster die. Custom chambers are usually smaller in the web than Factory chambers, be flexible in your approach. Web diameter is much more of a concern for me than bolt face to shoulder dimension, because it is the Web dia that usually causes the most difficult bolt closing. By the time I get the Web dimension to the point where the bolt closes easily, the Bolt face to shoulder dimension has been taken care of.</p></blockquote><p></p>
[QUOTE="VinceMule, post: 3102322, member: 122164"] ReLoading for the 264 Win Mag, use H1000 and your barrel life will be greatly extended. Same for N160 and N165 due to how cool the powders burn, with 140s in the 3240 or so FPS on a 26" barrel. I found the best accuracy full length sizing every firing. Make life simple by setting your Full length sizer to where the bolt is easy to close on a case that has very slight resistance in closing the bolt. You have be able to cycle the case easily and quickly for hunting purposes, so just run with what ever Shoulder set back you have to get the bolt to close easily. Monitor brass condition and throw brass away as necessary. Many of the most accurate loads are at Peak Pressure, where either a shoulder bump or a sizing of the web slightly is always needed. Some chambers are cut with a reamer of a smaller dimension or the reamer has dulled slightly from wear, and this creates more difficulty in getting cases sized properly for easy bolt close. If you neck down AGD 7 mag brass, you may have to neck turn, same for peterson. I am an AGD man, myself. Also, when you neck down, you also have to be aware that doughnuts can form, cut the doughnut out with a K and M mandrel that has a cutter on the end. I shoot Winchester brass, and it is smaller in the web than AGD, but AGD takes more pressure...choose your poison. AGD has a different internal case capacity, vs Rem and Winchester, loads do not interchange, and I have a different Full Length sizing die for each brand of brass. Old RCBS dies, marked '79 and earlier have smaller dimensions than any redding die or forster die. Custom chambers are usually smaller in the web than Factory chambers, be flexible in your approach. Web diameter is much more of a concern for me than bolt face to shoulder dimension, because it is the Web dia that usually causes the most difficult bolt closing. By the time I get the Web dimension to the point where the bolt closes easily, the Bolt face to shoulder dimension has been taken care of. [/QUOTE]
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264 Win Mags - When would the brass cases be considered "Fire Formed" for each individual action?
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