10mm all compatible powders load data

[TightLines]

Absolutely fantastic dataset.  Many thanks for posting this.

One observation I'd like to point out, it's cold where you live.....

Good luck out there this weekend.  Certainly looking forward to updates.

[Benchrst]

Went out today with the rather ambitious goal of testing 88 different loads, got through 49 before I lost the sunlight and the chrono became useless.

Needless to say I've ordered a light kit

Note: Individual string results can be found through the index at the top of AllPowders. And yes, I realize I'm handicapping the results by only loading 3 of each flavor, even more evident as many groups only recorded 1 shot.

[The_Shadow]

Glad to see you use of the powders like Vectan and Lovex added in to the project.  I have studied their data but haven't found the powders to test with.  So Thanks for detailed work sheets...

[Benchrst]

 Should probably take the position that a bad day shooting is better than a good day at work, but I'm having difficulty adjusting my attitude. Our shooting spot is in a shaded area, and while I've never had an issue with the chrono before, I lost the light around 1pm - or 2/3 through testing. Six hours travel (round trip) tends to set my expectations at maximum. Needless to say I've ordered a light kit.

D032 (Shooter's World Clean Shot D032-03, Explosia Lovex) has no load data for the 10, so I'm approaching things cautiously. Given Exlosia's, and others, comments on how fast this powder is I'll likely not push it. I will comment that I really like the 147 cast 6.5gr load @ 1,240.

Vectan's Ba 7.5 & Ba 9 load numbers are wonky, I'll continue the ladder with hopes of something resembling a 10mm load.

3N37: Viht must have really dumbed things down, as initial factory data produced 9mm results (155gr @ 922fps, 293 ft lbs). I know there's potential, and I'll likely take larger steps to get there.

Until now I was singing only the praises of #7, and I still really like it's capability, but Longshot, Blue Dot, and 800X have decided to show up

Finally getting somewhere with #9... Seems like it started coming alive at 11.7, curious to see if the trend continues. Anticipating the 12.0 & 12.3gr numbers, and will load up to 13.5 for the next round.

I know there are bigger #s already out there - "no pressure signs at xx.x, acceptable case expansion at xx.x". I also realize there's little to no new ground to be broken with the 10. I enjoy this process, and in the end I'll have a library of loads that work in MY GUN(s).

Accuracy, it is part of the equation, just not now: Seems backwards to run all these loads, and have no accuracy information, and I concur... But, most 'stock' handgun sights and I don't get along, at all. My TP 9's are terrible, but I'm able to hit an 8" plate at 20yrds 10/10, and 7/10 at 40. I can do NOTHING with the stock Glock sights, nada, zilch. I'm going to look at aftermarket, and could really use some recommendations.

Random: Locking slide, I suspect it's my grip on some of the heavier loads - I'll adjust next time out. Temperature: I'm concerned that as I push loads, and test at lower temps, that perceived 'safe' will become a not-so-much during the summer (85+). To keep testing during the winter months I plan to keep cartridges in a heated cooler (70 degrees?), only taking them out to test. That, with running a hot chamber should-maybe reduce the effects of colder weather on pressures. Same-lot testing #s next summer will tell. I do acknowledge that I'm handicapping the results with such a small sample per test, especially when chrono errors happen. Unfortunately, up until now, it is what it is. The data is still useful, but it certainly could be more refined. Time is the factor here, and I'll either continue as is, increase the sample count / reduce the # of tests, or find more hours in the day. Certainly as development is stopped with some combinations others can get more attention. 

[Benchrst]

Bit of an update 

[fltbed]

  Accuracy, it is part of the equation, just not now: Seems backwards to run all these loads, and have no accuracy information, and I concur... But, most 'stock' handgun sights and I don't get along, at all. My TP 9's are terrible, but I'm able to hit an 8" plate at 20yrds 10/10, and 7/10 at 40. I can do NOTHING with the stock Glock sights, nada, zilch. I'm going to look at aftermarket, and could really use some recommendations.

Try these: https://dawsonprecision.com/sights/glock-sights/?search_query=&page=1&limit=100&sort=featured&page_context=category&category=196&is_category_page=1
I've been using his fiber optics for years.

[Benchrst]

Thanks for the recommendation!

[The_Shadow]

Underwood was using some of the Lovex Powders which may be from Shooter's world as well.
He was using the LOVEX D037-01 which is the same by weight as AA#7, even in the 458 SOCOM he was using LOVEX D063-01  which is the same as AA1680...I suppose with the crunch on powders it forced several loaders to change up to these powders.

Seeing how you were wanting to load the 10mm with the stuff similar to AA#2 I'll post this chart from Accurate Arms

[Benchrst]

Thanks Shawdow

I was aware of the comparisons of D032 (Shooter's World) to #2, but I won't be loading to Accurate's max!

6.8gr (#2's starting charge) of D032 resulted in max observed expansion, with 6.6 & 6.5gr not far behind it.

Fast powders in 10mm is just part of cataloging the potentials, I don't intend on pushing them 

[10mmGarand]

Thanks for putting that together. The original Norma load info is nice to have as a baseline.

I will check out this chart if/when I work up any new loads.

[RDub01]

Outstanding Benchrst!
I also like the Norma loads right on top 

[TightLines]

Wonderful work. Please keep us updated. 

[REDLINE]

Awesome work and thanks for sharing!  I saw your other thread about getting a PT II.  If you do I'll be really interested in seeing the comparison between the calibrated PT II pressure numbers and the QL PSI pressure numbers you currently show in the spreadsheet.  I wish you the best of luck in your work moving forward.

Out of curiosity;  What chronograph do you use?  And what brand aftermarket barrel in your G20?

[sstewart]

I like the true glo TFX sights on my Glock's. That's probably because I was using the TFOs on other guns.
I like the white rings in the daylight and the green at night.

[Benchrst]

Hey REDLINE

Competition Electronics Pro Chrono w/ Digital Link. The barrel is a 5.15" Lone Wolf.

That and other info is kinda buried, but the spreadsheet contains links at the top (all links should be standard "link" blue).

Moving forward I intend to test loads with both the stock Gen 4 and LW 

A PTII will be a reality, and I hope to have a test platform ready to go by spring - thought now is to turn down the chamber end of a LW barrel, and test that with a Parker barrel I have.

Should work