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Joined: Aug 2010
Posts: 42,488
Campfire 'Bwana
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OP
Campfire 'Bwana
Joined: Aug 2010
Posts: 42,488 |
It’s a pain in the ass, if reloading isn’t an option and feeding other quality ammo in a quality barrel isn’t getting you the results you need, you can tamper with barrel harmonics by doing a couple things.
1. Do NOT excessively torque your muzzle device. This makes the barrel stretch when the barrel is heated after a few rounds and will scatter groups.
2.You can tune your muzzle device. Shoot a group and rotate it shoot another group. Record best group and use a high temp loctite and some clocking washers to set it in place.
3 this is the most tedious tip but can and will change harmonics. Originally torque your barrel but to 40 ft pounds, shoot a 5 shot group and let the barre cool. Tighten the barrel but 5 foot pounds and group again and cool. You’re groups will shrink and eventually get larger. Return barrel but torque to the best grouping.
Good luck! Good advice. Thanks for adding to the thread. Welcome to the fire too..
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Jan 2017
Posts: 6,550
Campfire Tracker
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Campfire Tracker
Joined: Jan 2017
Posts: 6,550 |
Well number one improvement for me was adding a good trigger. Mb
" Cheapest velocity in the world comes from a long barrel and I sure do like them. MB "
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Joined: Jan 2001
Posts: 7,224
Campfire Tracker
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Campfire Tracker
Joined: Jan 2001
Posts: 7,224 |
Learning a lot reading this thread as I'm pretty new to the AR thing... looking at building an AR one of these days for casual range (probably no competition at the moment) use and coyotes and accuracy is pretty important to me on any rifle I own. Seems like the dogs in our area like to hang up way out there sometimes and a long shot becomes necessary so I'm all about an accurate rifle. The close in dogs sometimes come by like a drive by gangster and catch you by surprise and a quick follow up shot is the one thing the AR platform gives me.
Also, I have this thing about wanting to do an 80% lower just for the project, but won't if it will hamper my search for accuracy.
So, a couple questions to start with- since parts are seemingly impossible to find any more where are you guys finding your parts and pieces? Lowers, BCGs, uppers, barrels, all seem to be in extremely short supply at the moment everywhere so shopping and trying to glean info has been interesting, to say the least.
In all this reading I had a question that I'm curious about- does the chamber you specify with your barrel make a huge difference? What is the best chamber to order- .223, 5.56, or Wylde? I was also thinking a 18 or 20" barrel for this rig, but I'm wondering if that is really necessary for my uses and might add more front end weight than I'm looking for.
Point me in the right direction so I don't spend my kids' inheritance and don't end up with a bunch of useless parts that shoot like a shotgun....
Bob
Never underestimate your ability to overestimate your ability.
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Joined: Jan 2001
Posts: 54,527
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 54,527 |
Learning a lot reading this thread as I'm pretty new to the AR thing... looking at building an AR one of these days for casual range (probably no competition at the moment) use and coyotes and accuracy is pretty important to me on any rifle I own. Seems like the dogs in our area like to hang up way out there sometimes and a long shot becomes necessary so I'm all about an accurate rifle. The close in dogs sometimes come by like a drive by gangster and catch you by surprise and a quick follow up shot is the one thing the AR platform gives me.
Also, I have this thing about wanting to do an 80% lower just for the project, but won't if it will hamper my search for accuracy.
So, a couple questions to start with- since parts are seemingly impossible to find any more where are you guys finding your parts and pieces? Lowers, BCGs, uppers, barrels, all seem to be in extremely short supply at the moment everywhere so shopping and trying to glean info has been interesting, to say the least.
In all this reading I had a question that I'm curious about- does the chamber you specify with your barrel make a huge difference? What is the best chamber to order- .223, 5.56, or Wylde? I was also thinking a 18 or 20" barrel for this rig, but I'm wondering if that is really necessary for my uses and might add more front end weight than I'm looking for.
Point me in the right direction so I don't spend my kids' inheritance and don't end up with a bunch of useless parts that shoot like a shotgun....
Bob Hint.................
Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
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Joined: Jan 2001
Posts: 7,224
Campfire Tracker
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Campfire Tracker
Joined: Jan 2001
Posts: 7,224 |
Another question- does a kit like the one linked have to ship to an FFL?
Never underestimate your ability to overestimate your ability.
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Joined: Jan 2001
Posts: 54,527
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2001
Posts: 54,527 |
Nope.
Only the lower is Registered and the kit ships with EVERYTHING,except the stripped lower,so it's like ordering a fishing reel.
80% away.
Hint.................(grin)
Brad says: "Can't fault Rick for his pity letting you back on the fire... but pity it was and remains. Nothing more, nothing less. A sad little man in a sad little dream."
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Joined: Nov 2009
Posts: 2,276
Campfire Regular
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Campfire Regular
Joined: Nov 2009
Posts: 2,276 |
Another question- does a kit like the one linked have to ship to an FFL? No, only thing that has to ship to a FFL is the stripped lower that is not included in that kit.
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Joined: Sep 2006
Posts: 22,193
Campfire Ranger
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Campfire Ranger
Joined: Sep 2006
Posts: 22,193 |
A no-brainer....................especially in the current climate. It'll do it all & then some. Br sure to check GB alignment & tightness, just sayin'. MM
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Joined: Apr 2011
Posts: 12,180
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2011
Posts: 12,180 |
A no-brainer....................especially in the current climate. It'll do it all & then some. Br sure to check GB alignment & tightness, just sayin'. MM Agreed. Darn good rifles. Never had a problem. I’ve got two and they’ve both been hammers.
Semper Fi
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Joined: Mar 2007
Posts: 11,319
Campfire Outfitter
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Campfire Outfitter
Joined: Mar 2007
Posts: 11,319 |
TAG….till I can get back and read the rest. Good stuff for a new-to-AR guy.
“When Tyranny becomes Law, Rebellion becomes Duty”
Colossians 3:17 (New King James Version)
"And whatever you do in word or deed, do all in the name of the Lord Jesus, giving thanks to God the Father through Him."
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Joined: Mar 2009
Posts: 2,482
Campfire Regular
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Campfire Regular
Joined: Mar 2009
Posts: 2,482 |
None of mine are as accurate as some posted, because I no longer have the abilities some here do.
My tips
Aero M4E1 matched receiver set
Armory Dynamics Stainless Spring Loaded Receiver Tension Screw
H3 or heavier buffer, heavier comes from Slash at Heavy Buffers
Springco Red spring to start, work my way down and order the heaviest spring that allows for function and correct ejection timing
Faxon Lightweight or Toolcraft Nickel Boron BCG
Aero 15" S-One or R-One Handguard
Premium barrel with fast twists
VG6 Epsilon Muzzle Brake
Longest gas system available for barrel being used
CMC 2.5lb 3Gun trigger
The Aero lower has a tension screw, I replace it with the Armory Dynamics Stainless Spring Loaded Receiver Tension Screw, clean degrease, bed the barrel to the action with Loctite 620, then torque to 35ft lbs, once that has cured I will final torque to 50ft lbs. I seal the gas block with Loctite 620, I don't use a suppressor, so I use Loctite 635 to mount the Muzzle Brake
NRA Endowed Patron Life Benefactor
GOA Life Member
TSRA Life Member
NSCA Life Member
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