The Unofficial Larue Tactical Reloading Thread - updated 3/30/12 New data on 168/175 SMK

[ARCHIVED THREAD] - The Unofficial Larue Tactical Reloading Thread - updated 3/30/12 New data on 168/175 SMK (Page 1 of 3)

ARCHIVED

Author

Message

coconut1

Member

Team Member

Joined: Jan 2008

TX, USA

Posts: 2510

Feedback: 100% (50)

Posted: 1/24/2012 4:40:49 PM

[Last Edit: 3/30/2012 3:36:42 PM by coconut1]

This is the unofficial version until someone says it's great, bold the title and make it all official. Going to layout some ground rules first and then start adding the content.

READ THESE RULES BEFORE READING ON OR POSTING!!

1. No Cherry Picking - This is used as a reference. If you are going to reload for your fine LT rifle or upper, you need to work your loads up. You paid good money for that rifle, why risk damaging it or yourself? There are lots of variables that effect pressures and velocity and just because a load resulted in x at my location does not mean you will have x result in your location. Same goes for manufacture lots. Work your loads up. If you do not understand this concept, you need to go do some reading in the reloading forum and purchase some manuals.

2 . Big Boy Rules - You are responsible for your own actions. No one here ( me, other posters, LT, Arfcom, etc. . . .) is liable if you screw up while reloading or ignore rule one and blow a rifle up. Reloading should be done in a very controlled and distraction free environment. IF you do not have this or cannot provide it for yourself, reloading is not for you. This thread is not intended, designed or adequate to teach you how to reload for your Larue rifle. It is meant to supplement currently published data.

3. Only Post YOUR data - No posting your Brother in Law or some guy on some other forum's load data. Gets us back to rule 1 right? If you did not work the loads up, if you did not set up and chrono the rounds, THEN DON'T POST IT. Simple, rocket science not brain surgery.

4. Only Chronographed Data - The load may shoot great at 100, but without the velocity, that's all it is and it's a chance for someone to screw up and blow up something. If you post data, it needs to be chronographed and posted in the appropriate format shown below, no exceptions. Velocities are critical to know if the load is safe and figuring out dope.

5. Please minimize chatter - Lets try to keep this thread clean. If you think I need to change something, add something, shove it where the sun don't shine, please im me and lets not have some 5 page mess of train wreck nonsense in a technical thread. Not saying only post data, but let s leave the bs at the door please and just post what is relevant and useful.

6. No 3 shot Samples - 3 shots is not statistically significant. Please do not post data based off only 3 shots. I want to have data based for 10 shots, but if you can only do 5 for whatever reason, I will accept 5. Please just load 10 rounds. The mag holds 20, so lets gather good data. If all you have are 3 rounds for some reason, please do not post the data until you can put together a full 5-10 rounds to test and then post the data.

Hopefully that covers it. Here's the format I thought we should try to use. If anyone has suggestions or modifications, please im me and we'll discuss it.

Bullet -
Bullet BC -
Powder -
Primer -
Brass -
Barrel Length -

OAL -
Powder Charge -
Crimp -

Average FPS -
Min -
Max -
STDEVA -
Sample Size -

Fill in what you can. If you do not have the means to get the STDEVA - Stand Deviation, message me the data and I will provide it for you. Sample size is not the same as group size. Sample size refers to the number of rounds you tested for this data. 3 rounds fired is not statistically significant. 5 is not great either, but if that is what you have, that is better than 3. 10 is the preferred sample size, please try to test 10 rounds before posting, I do not feel that is asking too much.

If there are any other variables you feel you need to mention, ie - the rifle was suppressed, you like 12,000 feet above sea level, you are super cool and have a windless worm tunnel free from atmospheric pressures you tested the rounds in, WHATEVER, please notate this at the beginning of your post so folks see it before they go playing Billy the Bullet Maker. . .

I have intentionally left off a spot for group size. This was done to avoid cherry pickers. If you want to post pictures or report how your reloads grouped, that's fine and I am not going to try to internet police that; however, I STRONGLY SUGGEST folks WORK UP THEIR RELOADS and not just start with a receipt they found on the internet.

Lets be safe, help each other out and have some fun guys. My first post will be coming shortly

** 03-30-12 : Okay, I have filled in the rest of the data I have collected in the past week and gone through and updated each post so that they are all in order grouped within one post. I have put notes for your reference in BOLD BLUE in each post that I updated. TXMG is in a few weeks, so I probably will not have any further updates for a while, but hopefully someone finds this useful and it helps eliminate some of the work up that I have had to do. If anyone has requests of bullets to test or powder combos, I am all ears and will do my best to get some data in here for something besides Varget. And as always, feel free to add your own data to this thread. **

What we've got here is failure to communicate.

User Info