D.R.D.

Good points. That said, the test on thetruthaboutguns Muzzle Brake Shootouts were done on an AR15. Also, while there may be difference between the impulse of an AR vs. bolt action due to reciprocating carrier group and gas movement, I'd think the overall standing of which brakes decreased in % of peak force would be the relatively the same. At the end of the day, it gives us a better idea of which brake designs generally decrease force and muzzle movement better than others. Choosing between the top few will likely be splitting hairs, especially if you've got an adjustable gas block and heavier buffer.

I spoke with him about this. He chose these since they were the most represented at PRS matches and in the precision shooting world (mostly bolt action). That's his milieu. Plus, as he talks about in the early parts of the testing, he was also looking at categories of design. Several of the more common brakes on the market have similar, if not identical design concepts, so would likely preform similarly. What he found, is that there was a trend for certain types of brakes that preformed better than others, especially those with baffles that angled back towards the shooter 15-35 degrees, vs. those that only pushed gasses out 90 degrees. Also, brakes with ports that expelled gasses from the top were understandably better at reducing muzzle rise for the most part. If you look on thetruthaboutguns.com "Muzzle Brake Shootout II", you can see which performed best there (amoung the "more popular" brakes out there) and compare them against which desgins precisionrifleblog.com found to work best. Of course, you must choose what you are looking for (decrease in reward felt recoil / muzzle rise / flash / noise level / weight / etc. He's got several installments left to look at further data and details. Plus, the " Muzzle Brake Shootout III" is due out later next month, I believe. So, by the end of the summer or so, we should have a lot of comparative data to make a great "Top 10" list out of.

More updates: http://precisionrifleblog.com/2015/07/25/muzzle-brakes-ability-to-stay-on-target/

Nice! Looking forward to a range report. i'm considering one of these.

Anyone know if this is DPMS or Armalite pattern? It says "AR10" and "Government profile" and has "M$ feed ramp extensions", but who knows what that really means to some. http://ballisticadvantage.com/16-inch-308-gov-mid-cmv-modern-barrel.html Also, anyone know if this one is Nitrided? http://aresarmor.com/store/Item/ar10-308-Barrel-16inch Thanks

Those look good. Let us know how they function. Looks like the price hike for AR barrels is due next month with x-calibers web site update. Should only add around $25 to the price. The bigger increase will be for their Savage pre fit bolt action barrels.

Awesome, thanks!

I got a MI FF SS Gen II 15" DPMS High handguard. What lo-pro adjustable gas block in .875" or .936" will fit under it? MI says they have a max internal height of 1.51" Anyone know what the exact height of the SLR brakes in that diameter are? Especially height over center-bore. It doesn't say on their site. Any other brands that might? I know Syrac is too tall. thanks

Witt Machine was tested on the AR15 Muzzle Break Shootout, and it didn't perform terribly well. As of now the APA and Alamo 4 Star Brakes are hard to beat for bigger bore. Note that all have angled baffles much like the M4-72 brake that is leading the 5.56 testing, but with 4 ports instead of three. The follow up reports and testing from precisionrifleblog and the upcoming muzzle brake shootout 3, should be revealing. How about giving the newbie a pass since that data is available, and we'd rather he save his money for something a works well?

Perhaps one that would encompass all calibers compatible with .308 sized receivers like 6.5cm, 260 rem, 243 win, etc.

1. "The LaRue PredatOBR would've likely been the rifle I ordered if I didn't build my own. " ^^^ This! 2. If it's just a "$3000 toy" for you, then please let someone else buy that LaRue. 3. Thank you to almost everyone on this forum for being so kind to me when I sounded like Leadshot 4. WTF is a "Sniper collapsible stock"?

Yeah, its seems like 35 degrees is close to the max baffle angle.

Latest installment: http://precisionrifleblog.com/2015/07/17/muzzle-brake-recoil-reduction/ This definitely gets interesting as you compare the shape of the brakes and angle of the baffles to some of the designs tested here: http://www.thetruthaboutguns.com/2015/04/jeremy-s/ar-15-muzzle-brake-shootout-2/

From their site: "All Daniel Defense cold hammer forged barrels are made from start to finish in our state-of-the-art facility located in Black Creek, GA. In keeping with our heritage of not cutting corners, all cold hammer forged barrels feature a forged chamber and heavy phosphate exterior coating or Salt Bath Nitride Finish. These barrels will prove themselves to be more accurate and last longer than a barrel that has cut or button rifling. Inside Finish: Chrome"

The guys over at the precisionriflepodcast know some people over at D.Wilson mfg. There was a discount code floating out there somewhere if you listened to the podcast. You might be able to contact them through the fb page.

http://www.dwilsonmfg.com/store/p18/AR10_Bolt_carrier_Group.html

http://precisionrifleblog.com/2015/07/13/308-muzzle-brake/

McGowen, Criterion, X-Caliber can all make what you want for much less than Krieger

They must have already changed over. It'd been several months or more since I've looked at their site.

I hope you're right!

All DD barrels are chrome lined except for their S2W (Strength to Weight) heavier barrels that are nitrided

They will definitely give brands like LMT a run for their money in the battle rifle dept. I'm guessing they week start around $2500 if they confine to use the CMV chrome lined barrels.

http://soldiersystems.net/2015/07/10/daniel-defense-releases-7-62-rifle-video/

6.5CM won't fit in a 5.56 chamber. You'd need to go 6.5Grendel

http://www.americanrifleman.org/Webcontent/pdf/2009-6/200961145351-hornadycreedmoor.pdf http://ammoseek.com/ammo/6.5mm-creedmoor/Hornady-rifle-140grains-?ikw=match