7SAUM test result question

Mxracer532

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Joined
Feb 3, 2013
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380
Location
Kennewick, WA
So I have done my OCW test and got a really mild load with a really good flat spot at 54 4g of H4350 with 180 ELDM's. I had shot a .3 group with the Magneto speed attached at .15 off. I took it off and tried the same load and ended up at about .75-.8. so I decided to do a depth test. I am kinda lost looking at my results. Any suggestions??? PXL_20210919_184633962.jpg
 

Huntnful

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Dec 16, 2020
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448
Location
California
The magneeto affects your barrel harmonics, so it "could" have actually helped your initial group in this instance. Or if it was just a 3 shot group, could have been a fluke. Lots of 2 bullets touching and 1 flier in those groups. Could have easily just had a fluke with 3 bullets touching.

Check your bipod feet, make sure they aren't catching on anything, sling stud not touching the rear bag ect. Those groups kind of look like something is inconsistent between the shots in your shooting platform, or in your form or something to cause that many "2 shots touching and 1 flyer" groups
 

Mxracer532

Well-Known Member
Joined
Feb 3, 2013
Messages
380
Location
Kennewick, WA
The magneeto affects your barrel harmonics, so it "could" have actually helped your initial group in this instance. Or if it was just a 3 shot group, could have been a fluke. Lots of 2 bullets touching and 1 flier in those groups. Could have easily just had a fluke with 3 bullets touching.

Check your bipod feet, make sure they aren't catching on anything, sling stud not touching the rear bag ect. Those groups kind of look like something is inconsistent between the shots in your shooting platform, or in your form or something to cause that many "2 shots touching and 1 flyer" groups
Thanks, do you have a suggestion as to what seating depth you would focus on for the next test?
 

can1010

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Joined
Feb 27, 2012
Messages
1,260
you have good horizonal at .010, and .060 i would work there giving more time for barrel to cool between shots and watch the wind. the ELDM are not seating sensitive and try to avoid jamming if possible.

work .005 on either side of .010 and .060
 

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