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<blockquote data-quote="Buzzdraw" data-source="post: 3046610" data-attributes="member: 385">Brass mouth wall thickness varies by maker and then a little within their individual lots.&nbsp; I often run mixed headstamp brass so I run with the thinnest in the lot on hand, usually Remington.&nbsp; Theoretically taper crimp is determined by carefully measuring the mouth sidewall, multiplying it by two, adding true bullet diameter, then subtracting .001&quot;.&nbsp; Formula usually works on straight wall (or nearly so) style cases.&nbsp; Does not work on sharply tapered cases such as 9mm Luger.My preferred .45 ACP bullet is the 200 gr SWC of the H&amp;G 68 style.&nbsp; I run these at 1.255&quot; and .469&quot; TC; they run in everything and shoot accurately. In the Glock 30 I run 230gr RN at 1.250&quot; OAL.&nbsp; Perfect function and good accuracy.&nbsp; Mixed brass is what I usually run as brass brand is of little importance to practical accuracy in most every pistol.&nbsp; Yes, if I&#039;m doing 50 yd accuracy testing with a gun with high accuracy testing potential I will go to single brand brass.&nbsp; Shooting a high end tournament I will run single brand once-fired brass.</blockquote>

[QUOTE="Buzzdraw, post: 3046610, member: 385"] Brass mouth wall thickness varies by maker and then a little within their individual lots. I often run mixed headstamp brass so I run with the thinnest in the lot on hand, usually Remington. Theoretically taper crimp is determined by carefully measuring the mouth sidewall, multiplying it by two, adding true bullet diameter, then subtracting .001". Formula usually works on straight wall (or nearly so) style cases. Does not work on sharply tapered cases such as 9mm Luger. My preferred .45 ACP bullet is the 200 gr SWC of the H&G 68 style. I run these at 1.255" and .469" TC; they run in everything and shoot accurately. In the Glock 30 I run 230gr RN at 1.250" OAL. Perfect function and good accuracy. Mixed brass is what I usually run as brass brand is of little importance to practical accuracy in most every pistol. Yes, if I'm doing 50 yd accuracy testing with a gun with high accuracy testing potential I will go to single brand brass. Shooting a high end tournament I will run single brand once-fired brass. [/QUOTE]

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