Where to get reloading data?

[Jgjgjg]

Gotcha! Not asking what you think I'm going to be asking!

I'm doing some self study in data analysis. Polishing my statistics, teaching myself R and Python.

To go further I need a really big data set, all laid out in countless rows and many columns. I am finding some public data sets on things like murder rates but....yawn.

Now, if one of you fine gentlemen had a 5000 or 10,000 row data set of something like shot velocities or group sizes that had bullet weight, brand, brass brand, primer, calibre, blah blah (and the more blah the more better), I'd be happy to spend 6 months "data sciencing" that and share results.

If you're reading this and your in the 'industry', consider this free labor. I could sign an NDA or you could sanitize the data. Won't promise I'll meet a deadline but I would promise to send you insights as I find them.

 

[LiveLife]

... data set of something like shot velocities or group sizes that had bullet weight, brand, brass brand, primer ...

I don't believe anyone on THR has done such a comprehensive accuracy testing using a machine rest platform like the Ransom Rest.

For my retirement project, I am in the process of building a hybrid pistol/carbine machine rest (I thought about buying a Ranson Rest but can't mount carbines/PCCs) which, if consistent enough, will be used for 25/50 yard testing of various projectiles, powders, primers, brass referencing well established accuracy standards of "known" accurate loads.

I have found that load testing can get quite extensive as shown in this thread for just a few carbine load testing - https://www.thehighroad.org/index.p...n-9mm-40s-w-45acp.799231/page-4#post-10338994

And if you are factoring reloads using range brass with different case wall thickness, there are many variables that will taint the testing data as expressed in this myth busting thread - https://www.thehighroad.org/index.p...neck-tension-and-bullet-setback.830072/page-4

And there are many more reloading variables that will taint the testing data as listed in this post which I am myth busting one by one - https://www.thehighroad.org/index.p...-and-discussions.778197/page-10#post-10966692

And our latest reloading/shooting variable group project is listing Max/Working OAL for particular barrels with specific bullet - https://www.thehighroad.org/index.p...let-max-working-oal-col-for-reference.848462/


So, this may not be what you are looking for but American Rifleman has been doing 25/50 yard Ransom Rest testing of various pistols and ammunition with velocity and group sizes for you to reference - http://www.americanrifleman.org/handguns/semi-auto/

Here's a short listing of their testing for your review:

Nighthawk Custom Hi-Power (25 yards) 0.74" to 1.71" - https://www.americanrifleman.org/articles/2017/4/11/tested-nighthawk-custom-hi-power/

EAA Witness Elite 1911 (25 yards) 0.82" to 1.41" - https://www.americanrifleman.org/articles/2017/5/5/tested-eaa-witness-elite-1911-polymer-pistol/

Lipsey's Vickers Tactical Glock 17 (25 yards) 1.00" to 1.80" - https://www.americanrifleman.org/articles/2017/3/23/tested-lipsey-s-vickers-tactical-glock-17/

Ruger PC carbine (50 yards) 1.13" to 1.42" - https://www.americanrifleman.org/articles/2018/1/2/tested-ruger-s-pc-carbine-and-security-9-pistol/

Sig P320 X-Five/VTAC (25 yards) 1.14" to 1.97" - https://www.americanrifleman.org/articles/2018/8/10/tested-sig-sauer-p320-x-series-pistols/

S&W M&P9 M2.0 Compact (25 yards) 1.22" to 3.64" - https://www.americanrifleman.org/articles/2017/11/30/tested-smith-wesson-mp9-m20-compact-pistol/

Remington R1 M1911 (25 yards) 1.24" to 2.99" - https://www.americanrifleman.org/articles/2011/1/13/the-remington-r1-m1911/

KRISS Vector Gen II SDP 9 (25 yards) 1.33" to 1.53" - https://www.americanrifleman.org/articles/2016/7/19/tested-kriss-usa-vector-gen-ii-sdp-9-mm-pistol/

S&W M&P9 M2.0 (25 yards) 1.33" to 2.36" - https://www.americanrifleman.org/articles/2017/5/22/tested-smith-wessons-mp-m20-pistol/

Sig P225 (25 yards) 1.38" to 2.43" - https://www.americanrifleman.org/articles/2018/6/22/tested-sig-sauer-p225-a1-nitron-compact-pistol/

Ruger SR1911 Target (25 yards) 1.46" to 3.23" - https://www.americanrifleman.org/articles/2017/1/9/tested-ruger-sr1911-target-pistol/

Sig P226 Legion Series (25 yards) 1.58" to 2.36" - https://www.americanrifleman.org/articles/2016/4/15/tested-sig-sauer-legion-series-p226-pistol/

Ruger Mark IV 22/45 Lite (25 yards) 1.82" to 2.00" - https://www.americanrifleman.org/articles/2017/3/3/tested-ruger-mark-iv-2245-lite-pistol/

FN 509 (25 yards) 1.88" to 2.06" - https://www.americanrifleman.org/articles/2017/6/26/tested-the-fn-509-pistol/

H&K VP9SK (25 yards) 1.97" to 2.23" - https://www.americanrifleman.org/articles/2018/1/5/tested-heckler-koch-s-vp9sk-pistol/

Beretta APX (25 yards) 2.30" to 2.47" - https://www.americanrifleman.org/articles/2017/7/25/tested-beretta-s-apx-pistol/

CZ P-10 C (25 yards) 2.40" to 3.02" - https://www.americanrifleman.org/articles/2017/10/6/tested-cz-p-10-c-pistol/

Kimber Camp Guard 10mm (25 yards) 2.41" to 2.69" - https://www.americanrifleman.org/articles/2018/1/11/tested-kimber-camp-guard-10-pistol/

Springfield XDM 4.5" OSP (25 yards) 2.46" to 2.80" - https://www.americanrifleman.org/articles/2017/3/21/tested-springfield-xdm-45-osp-9-mm-pistol/

Ruger American (25 yards) 2.48" to 2.89" - https://www.americanrifleman.org/articles/2015/12/29/tested-ruger-american-pistol/

PSA 1911 Stainless Two-Tone (25 yards) 2.51" to 2.89" - https://www.americanrifleman.org/ar...to-state-armory-1911-two-tone-premium-pistol/

Walther PPQ M2 Q4 Tac (25 yards) 2.53" to 2.76" - https://www.americanrifleman.org/articles/2018/1/19/tested-walther-ppq-m2-q4-tac-9-mm-pistol/

Ruger Security 9 (25 yards) 2.63" to 3.15" - https://www.americanrifleman.org/articles/2018/1/2/tested-ruger-s-pc-carbine-and-security-9-pistol/

 

[Offfhand]

If the data you request were available what would you be willing and prepared for it?

 

[fxvr5]

I don't believe anyone on THR has done such a comprehensive accuracy testing using a machine rest platform like the Ransom Rest.

I wouldn't say that. I have tons of RR data.

Jgjgjg, here is an article on how to think about group size, which you might find of interest. Note the part that focusing only on the smallest group (which we all do) is considered sampling bias. https://www.ssusa.org/articles/2019/9/25/accuracy-testing-shortcomings-of-the-five-shot-group/

 

[Skgreen]

Lotsa variables involved, and nothing is truly 'one size' fits all.

 

[Jgjgjg]

If the data you request were available what would you be willing and prepared for it?

I suspect you may have forgotten the word "pay"? I'm not willing to pay for it as I have nothing I would want to do with any "answers". I can, for example, download the census data which all paid for already and practice my skills on that. I'm just hoping to find something to grind on that's of more interest. *if* I was going to start a business competing with Federal's Gold Medal Match, then yes such a database would be highly valuable. But I'm not. I'm going to putter around with the numbers in the morning over a cup of coffee and in the evening over a glass of beer until I'm proficient enough in R and stats that someone will pay me to figure out which knob to twist so save 2% on the electricity bill for a refinery or something.

 

[Jgjgjg]

I wouldn't say that. I have tons of RR data.

Jgjgjg, here is an article on how to think about group size, which you might find of interest. Note the part that focusing only on the smallest group (which we all do) is considered sampling bias. https://www.ssusa.org/articles/2019/9/25/accuracy-testing-shortcomings-of-the-five-shot-group/

That's AWESOME article! Thanks! Willing to share that data?

 

[fxvr5]

That's AWESOME article! Thanks! Willing to share that data?

No thanks. I can/do all that analysis myself. But you've made a wonderful offer, and with luck someone will take you up on your kind and generous offer.

Best!

 

[fxvr5]

Jgjgjg, If you are technically minded with respect to accuracy, you might also be interested in the article below that looks at group size and a correlation with velocity consistency. The question is; does more consistent velocity produce smaller groups for the typical handgun at typical handgun shooting distance?

https://americanhandgunner.com/handguns/exclusive-consistent-velocity-accuracy/

 

[Jgjgjg]

Jgjgjg, If you are technically minded with respect to accuracy, you might also be interested in the article below that looks at group size and a correlation with velocity consistency. The question is; does more consistent velocity produce smaller groups for the typical handgun at typical handgun shooting distance?

https://americanhandgunner.com/handguns/exclusive-consistent-velocity-accuracy/

Now that is really interesting! Thanks!