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Gviz

Help starting load for 9 major using VV 3n38 and 124 CMJ

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ordered 115 and 124 mg cmj going to do some timing drills 

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3 hours ago, Gviz said:

ordered 115 and 124 mg cmj going to do some timing drills 

 

I tried the MG 115 & 124 CMJ's in 3 of my 9major open guns earlier this year.

Accuracy was not acceptable in these guns.

 

Definitely shoot groups with them as part of your load development.

Accuracy is exceptional with MG 115 & 124 JHP's in all of my open guns.

 

 

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Finally had the time to test WAC vs 3n38 side by side with mix brass, MG 124 round cmj. Did a load ladder and picked the loads that made 170-173 power factor for both powders. Then loaded 200 rounds of 3n38 and WAC

 

Ended up with:

 

WAC 7gr  For 172PF

3n38 8.5gr for 171PF

 

accuracy was almost the same supported and free hand 15-20 

 

bill drills at 7 and 2 shot drills at 10.

I had 3n38 faster on the timer and has a smaller group over WAC so the question is will I switch...

 

yes, but I’m setting up an ammobot at the moment and I’m not sure it will manage to load 3n38 without making a mess. So I’ll start loading WAC and finish my 8lbs then try to tune the ammobot to load 3n38 if not I’m stuck with WAC 🤦🏻‍♂️😂 

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Posted (edited)

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Edited by Gviz

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lots of good stuff here, i am working on a load for my steelmaster in major using CFE, 3N38 and maybe AA7. 124GN

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