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First look at 137gr GS Custom

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/09/2011 at 10:23
8shots View Drop Down
Optics Jedi Knight
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Lord Of The Flies

Joined: March/14/2007
Location: South Africa
Status: Offline
Points: 5751
My 100 GS Custom target bullet arrived yesterday. 308 Cal 137 gr
 
I loaded 20 with 45gr S321 a faster powder then my S355 at 42,5
and went to the range today.
 
I first shot two bullets allmost in same hole at 100 m with standard load. Gun and scope dead nuts.
I then fired two shots with GS. Nothing blew up and no pressure signs. I was a bit disappointed !
 
The shots fell 2 inches low and gave a 1 inch grouping. I seated the rounds deeper and got a 1/4 inch grouping still 2 inches low.
 
At 200 m I got a 4 inch drop with both gr, but a better grouping with my 155gr.
 
At 285 m I got  1,5 inches less drop with the 137 gr and a pretty neat group, better then with my 155gr.
 
The wind pushed both bullets the same amount.
 
Sorry, no targets to show as the range was full  of shooters and I used the same targets, so they are full of holes and a bit confusing to understand. I also could not set up a chrony, so no speeds.
 
Round one a bit confusing, but the 137 gr looks promising.
 
I am going to add another 1,5gr 321 to the next lot and push the envelope a bit.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/09/2011 at 13:32
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Optics Jedi Knight
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Joined: November/25/2007
Location: Wisconsin
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Good luck 8, sounds like your having a good time.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/11/2011 at 07:26
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Optics Retard
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Chief Sackscratch

Joined: December/17/2009
Location: NorthCackalacky
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Excellent news.  Keep us informed
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/11/2011 at 09:19
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Optics Jedi Knight
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Joined: January/08/2007
Location: Oklahoma
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At least where you are it is cool enough to go to the range safely.There is no shade where I go.  With the temps exceeding 110 F. some of my minimum loads are showing signs of excessive pressure because of the heat.  Shells on the table are too hot to touch and will burn your fingers. Have fun and good luck..

Edited by 3_tens - July/11/2011 at 09:20
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/11/2011 at 14:16
8shots View Drop Down
Optics Jedi Knight
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Lord Of The Flies

Joined: March/14/2007
Location: South Africa
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Points: 5751
I have the same issues. In winter safe loads are no longer safe in summer. I have had a few popped primers and stretched cases to show..
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