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hadjii
Member

USA
725 Posts

Posted - 02/20/2018 :  3:12:53 PM  Show Profile  Reply with Quote
Seen something yesterday I haven't seen before. I was shooting at a distance of 300 yards, shooting my Ruger 77 chambered in 264 win mag, shooting 130 grain swift scirocco. I had one bullet hit the target completely sideways by the hole in the target. Is that a sign of the bullet not being stabilized or perhaps just a bad bullet? All other bullets made nice little round holes. They always group good at 100, but thought I'd stretch out a ways for a change. Twist in my rifle is a 1 in 9. Muzzle velocity is 3050 fps according to my crony.
Thanks for thoughts and inputs.

charliemeyer007
Advanced Member

USA
5797 Posts

Posted - 02/20/2018 :  4:39:12 PM  Show Profile  Reply with Quote
Only one keyhole, I'd guess a bad bullet.
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nononsense
Moderator

10103 Posts

Posted - 02/20/2018 :  6:27:52 PM  Show Profile  Reply with Quote
hadjii,

It sounds like something is off in the balance of that bullet. Your load at that velocity should be stable down to a 1:10" twist rate.

Best.








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hadjii
Member

USA
725 Posts

Posted - 02/20/2018 :  7:02:00 PM  Show Profile  Reply with Quote
I think I'll try shooting a couple more groups at that range, and see if I have any more bullets that do the same, and then make a determination. I will say this though. My very best accuracy with this rifle has came from 140 grain bullets and R17 powder.

I hope it was just a fluke. I have 4 boxes of them. They did a nice job on a nice 8 pt I shot in Louisiana last year. Deer took 3 steps and gave it up.

Edited by - hadjii on 02/20/2018 8:02:47 PM
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charliemeyer007
Advanced Member

USA
5797 Posts

Posted - 02/20/2018 :  7:51:47 PM  Show Profile  Reply with Quote
Before you load them, weigh them, might check the diameter too. Sometimes the bullet swedging stuff wears out of round a little before they catch it.

Back in the day Hornady actually shot groups with different lots of production for a check. A group opened way up so they started looking - 0.0002 in something was off. When corrected the groups returned to normal.

So what was you 100 yard group size?
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