Primers vs pressures , how much of a difference - Page 2

Metal god · June 12, 2016, 07:13 PM

This shows the marks on the cases . AS you can see the marks in the circle are actually at an angle as shown by the green line . The mark goes all the way around but its higher on one side then the other . With the other being right at the extractor groove

Here are the measurements . The .4705 is the one that stuck more

Metal god · June 12, 2016, 11:13 PM

So I got to thinking about those marks being at an angle . It made me consider that my heads are out of square so I checked that with a method UN suggested a couple years ago . That is line up 10 or so cases with a straight edge then look down the row and see if any are crooked

Those are the worst cases I've ever seen . All of those are FL sized with only the first two not trimmed . Now wonder they were so cheap

Here's the same test I did a couple years ago . These are not perfect but way better

So then a few months ago I thought I'd try that same method to see how square my Lyman universal trimmer trimmed cases

Not to bad really .

June 12, 2016, 07:13 PM	#26
Metal god Senior Member Join Date: April 10, 2012 Location: San Diego CA Posts: 6,876	A few pics This shows the marks on the cases . AS you can see the marks in the circle are actually at an angle as shown by the green line . The mark goes all the way around but its higher on one side then the other . With the other being right at the extractor groove Here are the measurements . The .4705 is the one that stuck more __________________ If Jesus had a gun , he'd probably still be alive ! I almost always write my posts regardless of content in a jovial manor and intent . If that's not how you took it , please try again .

June 12, 2016, 11:13 PM	#27
Metal god Senior Member Join Date: April 10, 2012 Location: San Diego CA Posts: 6,876	So I got to thinking about those marks being at an angle . It made me consider that my heads are out of square so I checked that with a method UN suggested a couple years ago . That is line up 10 or so cases with a straight edge then look down the row and see if any are crooked Those are the worst cases I've ever seen . All of those are FL sized with only the first two not trimmed . Now wonder they were so cheap Here's the same test I did a couple years ago . These are not perfect but way better So then a few months ago I thought I'd try that same method to see how square my Lyman universal trimmer trimmed cases Not to bad really . __________________ If Jesus had a gun , he'd probably still be alive ! I almost always write my posts regardless of content in a jovial manor and intent . If that's not how you took it , please try again . Last edited by Metal god; June 15, 2016 at 01:15 AM.