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Long Range Hunting & Shooting
Savage 6.5x300 win???
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<blockquote data-quote="IdahoCTD" data-source="post: 980003" data-attributes="member: 13110"><p>Jeff (Broz) I know has done it to 7-300wm but I haven't heard anyone doing it to 6.5-300wm. The down side to going that far below the parent cartridge is it may not do enough sizing on the shoulder because of the caliber difference. Bushing dies are about .030" oversized at the neck. So at roughly .368" is where it would size the shoulder and my loaded rounds are .289" with neck turned brass. My reamer has a .293" neck. That leaves a good portion of the shoulder back from the neck unsized and can create problems.</p><p></p><p>Personally if I was going to do this over (for both my 7-300wm's and my 6.5-300wm's) I would do a 35 degree shoulder and go with a custom bushing die in 7-300wm imp. that could be used for the 6.5 too. I have to trim cases every other firing and it get's old. The sharper shoulder would push that back to probably 4 firings. It would also get you another 40-50fps. I think 3400fps with R-33 or R-50 and 140's would be doable in a 6.5-300wm Imp. That's right with a 26 Nosler but with a lot more brass options. The downer is having to fireform brass but I'd make a fireform barrel for that to save barrel life. There are a lot of benefits to doing your own gunsmithing <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" />.</p></blockquote><p></p>
[QUOTE="IdahoCTD, post: 980003, member: 13110"] Jeff (Broz) I know has done it to 7-300wm but I haven't heard anyone doing it to 6.5-300wm. The down side to going that far below the parent cartridge is it may not do enough sizing on the shoulder because of the caliber difference. Bushing dies are about .030" oversized at the neck. So at roughly .368" is where it would size the shoulder and my loaded rounds are .289" with neck turned brass. My reamer has a .293" neck. That leaves a good portion of the shoulder back from the neck unsized and can create problems. Personally if I was going to do this over (for both my 7-300wm's and my 6.5-300wm's) I would do a 35 degree shoulder and go with a custom bushing die in 7-300wm imp. that could be used for the 6.5 too. I have to trim cases every other firing and it get's old. The sharper shoulder would push that back to probably 4 firings. It would also get you another 40-50fps. I think 3400fps with R-33 or R-50 and 140's would be doable in a 6.5-300wm Imp. That's right with a 26 Nosler but with a lot more brass options. The downer is having to fireform brass but I'd make a fireform barrel for that to save barrel life. There are a lot of benefits to doing your own gunsmithing :-). [/QUOTE]
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