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Rifles, Reloading, Optics, Equipment
Reloading
Vintage Lyman Sizing Die Identification
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<blockquote data-quote="edmedm" data-source="post: 1156494" data-attributes="member: 71250"><p>I have a Lyman #45 reloading manual that was printed in 1970, seven years after the referenced Hornady manual, but the Lyman manual identifies the cartridge as "7mm Mauser (7x57)", not just "7mm". </p><p></p><p>Allowing for measurement error the die dimensions agree closely with 7mm Mauser specs, and the Hornady manual provides evidence that "7mm" was at one time used synonymously with "7mm Mauser" and "7x57". </p><p></p><p>I do not know when Lyman converted from the old black cardboard boxes to the plastic orange style, or if they ever did change die markings to read 7mm Mauser or 7x57. However, the packaging likely indicates that this is an older set which could have been produced during the time before proliferation of other 7mm designs, when shorthand "7mm" was description enough. </p><p></p><p>One wildcard is the modified "7mm REM MAG" labeling on the box (was it the original box with label corrected at Lyman, etc.) but no need to head down that path. The die "is what it is" and therefore the topic of interest, not the box which could be misleading.</p><p></p><p>I agree that the die in question is very likely a 7mm Mauser/7x57. To confirm, I'm in the process of chasing down a couple pieces of 7mm Mauser brass to run through the die. If that experiment fails I can give Lyman a call, but I doubt that I will have a need to do so.</p><p></p><p>Thanks for the excellent, detailed response with solid historical references.</p></blockquote><p></p>
[QUOTE="edmedm, post: 1156494, member: 71250"] I have a Lyman #45 reloading manual that was printed in 1970, seven years after the referenced Hornady manual, but the Lyman manual identifies the cartridge as "7mm Mauser (7x57)", not just "7mm". Allowing for measurement error the die dimensions agree closely with 7mm Mauser specs, and the Hornady manual provides evidence that "7mm" was at one time used synonymously with "7mm Mauser" and "7x57". I do not know when Lyman converted from the old black cardboard boxes to the plastic orange style, or if they ever did change die markings to read 7mm Mauser or 7x57. However, the packaging likely indicates that this is an older set which could have been produced during the time before proliferation of other 7mm designs, when shorthand "7mm" was description enough. One wildcard is the modified "7mm REM MAG" labeling on the box (was it the original box with label corrected at Lyman, etc.) but no need to head down that path. The die "is what it is" and therefore the topic of interest, not the box which could be misleading. I agree that the die in question is very likely a 7mm Mauser/7x57. To confirm, I'm in the process of chasing down a couple pieces of 7mm Mauser brass to run through the die. If that experiment fails I can give Lyman a call, but I doubt that I will have a need to do so. Thanks for the excellent, detailed response with solid historical references. [/QUOTE]
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Vintage Lyman Sizing Die Identification
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