Brake vs. Bare Muzzle vs. Flash Hider...it matters.

**BadgerPeak** · 05-09-17, 16:13

To clarify, in both cases, just one or two rounds expanded your group size by about a full MOA. Firing a few more rounds would either confirm those shots as a genuine part of the normal dispersion, or indicate that they were more likely "fliers". If your breaked group has a couple of those, and the flash hider group doesn't, then they shoot identically. I'd want to know that before trying to fix anything.

**opngrnd** · 05-09-17, 16:41

For the purpose of science, I'm going to make a lot of 200 rounds of my accuracy load. I'll fire five ten shot groups with my standard A2/crush washer that's currently installed, install the vortex, fire a few groups to help settle the new muzzle device, and then fire five more 10 shot groups.

I'll report anything I find, and hopefully add to the relevant data on this thread. If anyone has any further suggestions on how to perform this test, please let me know.

**WS6** · 05-09-17, 23:09

Originally Posted by BadgerPeak

Nobody said anything about thousands of rounds. As I see your groups, if the flash hider groups are overlaid, you have a two moa group with a flash hider and three moa with break (approximately).

I've seen far more variation than that in group to group (same setup) in many cases.

Feel free to explore different attachments, but I'd want to make sure an issue existed before throwing money at a solution. For me, I'd at least shoot 30 rounds at the same POA with each setup before moving forward.

It's your money and your experiment, just trying to offer some experience.

Roger that. This is just far and away not the first time this has happened.

**BadgerPeak** · 05-10-17, 00:11

Copy. Please keep us updated on your progress.

**BadgerPeak** · 05-10-17, 00:13

Originally Posted by taekwondopreacher

For the purpose of science, I'm going to make a lot of 200 rounds of my accuracy load. I'll fire five ten shot groups with my standard A2/crush washer that's currently installed, install the vortex, fire a few groups to help settle the new muzzle device, and then fire five more 10 shot groups.

I'll report anything I find, and hopefully add to the relevant data on this thread. If anyone has any further suggestions on how to perform this test, please let me know.

Wow, that would rock! Thanks, I'll watch for an update.

**WS6** · 05-10-17, 00:56

Originally Posted by BadgerPeak

Copy. Please keep us updated on your progress.

No problem, will do! Like I said though, I am not shooting these groups. The person who is, shoots a lot of guns, with a lot of different muzzle devices on them. My results are in line with his observations. I think the MOST informative will be the 10 shot group forthcoming with the MK319, to compare to the braked group with MK319.

**WS6** · 05-10-17, 00:57

Originally Posted by taekwondopreacher

For the purpose of science, I'm going to make a lot of 200 rounds of my accuracy load. I'll fire five ten shot groups with my standard A2/crush washer that's currently installed, install the vortex, fire a few groups to help settle the new muzzle device, and then fire five more 10 shot groups.

I'll report anything I find, and hopefully add to the relevant data on this thread. If anyone has any further suggestions on how to perform this test, please let me know.

I look forward to it! TY!

**WS6** · 05-10-17, 05:34

This image from Surefire's own testing supports the theory...take the brake out of the equation, gas-flow wise, and...the flier goes away, and the group tightens up...