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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
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<blockquote data-quote="James H" data-source="post: 381759" data-attributes="member: 5449"><p>When I ordered the chamber reamer I also ordered a resize reamer to make my own dies. For resizing a made a bushing die so I could control neck tension. Dimensions are close enough that I should be able to use the same dies for both ctgs I just won't get as far down on the base with the longer ctg. For the seating die I made a bushing for my 30-378 RCBS Gold medal die. A 300 RCM seating die would work out of the box also. </p><p>For my form dies I push the shoulder back with a die that leaves the neck around .373 ID then I turn the brass then neck down to .335 ID then run them through the 30x375 bushing die and turn necks again. Fireform then anneal.</p><p> </p><p>Another fellow who posts on this forum was using a FL 375 Ruger die to body size and a 338 RCM FL die for neck and shoulder bump on his 338x375 Ruger, last I knew it was working.</p><p> </p><p>James</p></blockquote><p></p>
[QUOTE="James H, post: 381759, member: 5449"] When I ordered the chamber reamer I also ordered a resize reamer to make my own dies. For resizing a made a bushing die so I could control neck tension. Dimensions are close enough that I should be able to use the same dies for both ctgs I just won't get as far down on the base with the longer ctg. For the seating die I made a bushing for my 30-378 RCBS Gold medal die. A 300 RCM seating die would work out of the box also. For my form dies I push the shoulder back with a die that leaves the neck around .373 ID then I turn the brass then neck down to .335 ID then run them through the 30x375 bushing die and turn necks again. Fireform then anneal. Another fellow who posts on this forum was using a FL 375 Ruger die to body size and a 338 RCM FL die for neck and shoulder bump on his 338x375 Ruger, last I knew it was working. James [/QUOTE]
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