190 gr sub X and N110

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Demphna2
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190 gr sub X and N110

Post by Demphna2 » Mon Jul 11, 2022 2:22 pm

First, I'd like to say I'm a huge fan of the members on this site. I have read through a lot of threads the last 3 weeks and found valuable information from you guys. Thank you for your experimentation and efforts to push the boundaries of the 300 blackout :P

My question, which I'm still going back and forth on, is when working with this combo of 190 gr sub X and N110, what's a good load length to consider when using this for a 6.5" AR barrel to cycle? I'm going to start with 10 gr, 9.5 gr, 9 gr, and 8.5 gr to figure out what my velocities will be.

I've saved some information from Dellet about port pressure and peak pressure, but just looking for what seating depth you guys would start with first.

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Demphna2
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Re: 190 gr sub X and N110

Post by Demphna2 » Sat Jul 16, 2022 8:17 pm

Tested N110 just a minute ago. I love this powder. Definitely more quiet and way cleaner. Velocities as follows:

10 gr - 1111
9.5 gr - 1073
9 gr - 1028, 1023
8.5 gr - 996, 980

All functioned and BHO. Going to test between 8.5 gr and 9.5 gr. I have a hunch I'll be 9 gr +- .1 gr. Accuracy at 10 yards was a ragged hole, going to see about 50 yards next time.

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Demphna2
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Re: 190 gr sub X and N110

Post by Demphna2 » Sun Jul 24, 2022 4:25 pm

8 gr - 879
8.2 gr - 930
8.4 gr - 950
8.6 gr - 990
8.8 gr - 1003
9 gr - 1026
9.2 gr - 1035
9.4 gr - 1073
9.6 gr - 1066

I think nodes I'll explore are 8.7 gr and 9.1 gr

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Shot at 50 yards. What you guys think?

BJK
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Re: 190 gr sub X and N110

Post by BJK » Mon Jul 25, 2022 11:42 am

Well, this is obvious... I think you need to load a bunch of test rounds that use one powder charge for testing. Or load a mess of each powder charge. If I used a public range that I needed to drive to I'd do the latter. The reject loads can always be disassembled either in the firearm or at the (un)loading bench.

Please let us know how you make out and what you decide. More data is never a bad thing.

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Demphna2
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Re: 190 gr sub X and N110

Post by Demphna2 » Mon Jul 25, 2022 1:55 pm

I agree. I've loaded up 10 rounds of 8.7 and 10 rounds of 9.1. Going to explore those and I'll post data here when I get it.

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Demphna2
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Re: 190 gr sub X and N110

Post by Demphna2 » Sat Aug 06, 2022 12:21 pm

N110
190 gr Sub-X
COL 2.09
W/ Ultra 9 suppressor

9.1 gr - 1013, 1012, 1008 ES 5
8.7 gr - 982, 976, 987, 969 ES 18

8.7 grouped a lot better

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Any suggestions? Going to test at 100 yards next

ShootNstuff
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Re: 190 gr sub X and N110

Post by ShootNstuff » Sun Aug 07, 2022 1:06 pm

Wow. That’s really encouraging. Nice.

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