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This blog is simply intented to share information. It is in no way a loading manual. I'm not an expert blogger or author so there will be typos. If you don't recognize these typos and blindly use ridiculous charges it is your own fault.

Use common sense. Double check all information in this blog with other manuals. Work up your own loads. I'm not responsible for your mistakes, even if you're making the same mistakes as me.
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Hornady 68gr issues #3

Posted 10-17-2012 at 12:00 AM by mroels

note: I know most of you don't need an update as we've pretty much camee to the conclusion as to what the issue is. But I just wanted to share because at some point another person will come across the same situation and hopefully this thread will be helpful

update#2:Went to the range again, a week later than planned. Obviously my main thinking is still that it is the bullet, which kind of confirmed by the fact that bulk cheapo 55grainers are doing better than match grade bullets. I did improve the groups a bit but it's still well above 1 moa and I know my rifle can do much better. All my dies were cleaned and re-installed perfectly. I used fresh Hornady brass. Brass prep was meticulous. Charges thrown with the newly acquired Chargemaster.

At 100 Yards:
5rnds - 68gr HDY (problem batch), 22.7 TAC --> 1.35moa
5rnds - 68gr HDY (new batch), 22.7 TAC --> 1.55moa
5rnds - 68gr HDY (new batch), 25 Varget --> 1.36moa
5rnds - 68gr HDY (new batch), 22.7 TAC --> 1.88moa crimped
5rnds - 55gr WIN FMJ, 22.7 TAC --> 1.18moa

I used this as an excuse to buy a RCBS Chargemaster and a bullet comparator. And ordered some Nosler 69gr, so I'll be comparing them side by side.

I also re-weighed the bullets using the Chargemaster: weighed 30 bullets
HDY 68gr --> avg:67.82gr sd:0.063gr Not one bullet weighed 68grains
NOS 69gr --> avg:68.98gr sd:0.027

Also measured bullets from base-to-ogive: measured 30 bullets
HDY 68gr --> avg:0.5965" sd:0.000972"
NOS 69gr --> avg:0.0520" sd:0.000943"

still using cheapo calipers

Assuming the Nosler's perform I'm going to put the Hornady's aside until I get my new upper which will have a 1/7twist and see if they perform in that barrel
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