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cody0707

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Finally got out and was able to test some bullet and powder combinations. Here is a link to my spreadsheets. There are 4 different sheets, in the bottom left you can click on the different bullet types. All of this was shot from an 18" 5r11 barrel with the MDWS HMD. The data was taken 82' above sea level. It was a cool 33.8 °F  

https://drive.google.com/file/d/1nzvBDfJbJn9yJeVCtzKIzjiQ-8ah-FVV/view?usp=sharing

While I had my Magnetospeed out we shot the factory loaded Hornady 6.8 SPC 120 grain SST from an 18" barrel. Average velocity was 2,484 fps.
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RangerJoe

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Nice work!  Was that one round per charge weight?
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cody0707

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Quote:
Originally Posted by RangerJoe
Nice work!  Was that one round per charge weight?


Yes it was. I was just looking to find where my pressure limits were and trying to see if I could identify any accuracy nodes. I did not find my pressure limit. None of the primers were flattened to a point I would not have kept going had I had higher charges. 
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bbbrownfield

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Reply with quote  #4 
Nice work. I'll be looking forward to more.
I've been shooting CFE BLK too, with much the same results- not as much velocity for the same weight. It weighs out a little different from 1680 so you have to use more for the same velocity.

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Cabob

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Reply with quote  #5 
Great job! It looks like you have a little more room with CFE BLK and 100 gr. Accubond. I tested that powder last year in an 18" 3G barrel and went up to a full case in LC 09 brass, which was 24.4 gr. I was hitting right at 2700 fps. Those were loaded to roughly 2.210. You'll probably find a node somewhere between 23.8 and 24.4 gr. Good data!

By the way, that 120 gr. is smoking! That's one of the bullets on my tryout list now that I have Starline brass, CFE BLK, and SWB.
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cody0707

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Reply with quote  #6 
Quote:
Originally Posted by Cabob
Great job! It looks like you have a little more room with CFE BLK and 100 gr. Accubond. I tested that powder last year in an 18" 3G barrel and went up to a full case in LC 09 brass, which was 24.4 gr. I was hitting right at 2700 fps. Those were loaded to roughly 2.210. You'll probably find a node somewhere between 23.8 and 24.4 gr. Good data!

By the way, that 120 gr. is smoking! That's one of the bullets on my tryout list now that I have Starline brass, CFE BLK, and SWB.


I plan on going higher with the CFE BLK. I didn't notice any preasure signs. Good to know what I have to shoot for with the 100gr Accubonds. I was hoping to get them around 2700 fps. 

The 120gr SST was factory loaded in a 6.8 SPC. I forgot to mention that. I doubt the Wlv would come close to that.
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Cabob

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Reply with quote  #7 
Haha, I was thinking if CFE BLK could make the WLV sing like that, wow, it would open up a whole new world of possibilities! I still think 2400 fps might be possible with either CFE BLK or SWB and the 120 gr. SST. Keep us updated on what you find out.
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mcintosh

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Reply with quote  #8 
Awesome data, thanks for sharing.
This is really helpful as I am about to start testing loads for the MDWS 95 myself.

Cabob, I’ll be testing out another round of 120SST with SWBO tomorrow. So far I’m getting roughly 2425fps out of an 18”1:11.
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Cabob

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Reply with quote  #9 
Awesome!
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