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BigBlue Super Member
Joined: Jan 16, 2006 Posts: 1108 Location: Lehigh Township, Pennsylvania
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Posted: Sat Jul 03, 2010 3:03 pm Post subject: Re: AR Thread!! |
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I've got a question about M4 feed ramps. I understand that ideally the feed ramp cuts are made in both the upper and in the barrel insert. Anyone have an idea on how best to go about getting them aligned when putting a barrel on? Does the alignment just fall in place when the barrel is fit into the notch in the receiver?
Don
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shrpshtrjoe Super Red Neck Member
Joined: Jan 26, 2005 Posts: 2965 Location: Maryland
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Posted: Sat Jul 03, 2010 4:32 pm Post subject: Re: AR Thread!! |
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I have gotten my uppers complete so I'm not much help but Crackshot will probably have a answer for ya.
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BigBlue Super Member
Joined: Jan 16, 2006 Posts: 1108 Location: Lehigh Township, Pennsylvania
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Posted: Sat Jul 03, 2010 6:26 pm Post subject: Re: AR Thread!! |
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Joe,
I may yet decide to go that route and buy a complete upper, but I want to look at doing it either way before I decide.
Don
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sun Jul 04, 2010 1:56 pm Post subject: Re: AR Thread!! |
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And the results were!?!
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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shrpshtrjoe Super Red Neck Member
Joined: Jan 26, 2005 Posts: 2965 Location: Maryland
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sun Jul 04, 2010 6:03 pm Post subject: Re: AR Thread!! |
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shrpshtrjoe, which bullet is this again?
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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shrpshtrjoe Super Red Neck Member
Joined: Jan 26, 2005 Posts: 2965 Location: Maryland
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OBOne Member
Joined: May 24, 2008 Posts: 32 Location: Near Pensacola, Fl.
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Posted: Mon Jul 05, 2010 5:31 am Post subject: Re: AR Thread!! |
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Nice groups there you all. Hope I can do as well. My results with factory and white boxes with 55 grain bullets are less than great. So I am planning on doing some reloading with the heavier bullets.
I have a 223/5.56 with a multi caliber lower. The upper has a 16 inch free floating barrel with a 1 in 7 twist. I have some Sierra 69 grain HPBT Match, Hornady 75 grain BTHP, Nosler 77 grain HPBT and some Sierra 77 Grain HPBT Matchking bullets. The powder I have is 3 lbs of H-335 and one pound of H-4350.
A friend recommended the H-335 for my AR reloads, so I got the 3 pounds when it was scarce. I had great results with the H-335 under 110 grain 30-06 bullets. Clover leafs at a hundred yards. I'm hoping that the H-335 will do as great for the 223.
So what say you guys? any results with H-335 and the heavier bullets?
Thanks
OB
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Mon Jul 05, 2010 6:18 am Post subject: Re: AR Thread!! |
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Heavier bullets should do go in your 1:7 twist. 55gr should do ok also. I'm learning that reloading for a semi-auto is a different ball game than for a bolt action. As such, I can't give you any tips.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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fnuser Super Member
Joined: Dec 23, 2008 Posts: 914 Location: S.W. Missouri, U.S.A.
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Posted: Fri Jul 09, 2010 5:40 pm Post subject: Re: AR Thread!! |
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Okay I'm in a local dealer is selling n.i.b. Olympic Arms for @600 depending on what you get, I got a pretty basic one and found a great deal on mags Brownell's is selling qty25 30rnd mags at @240 called a buddy and we're gonna split a case. Those look like pretty good mags I especially like the c.s. springs.
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shrpshtrjoe Super Red Neck Member
Joined: Jan 26, 2005 Posts: 2965 Location: Maryland
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Fri Jul 09, 2010 6:55 pm Post subject: Re: AR Thread!! |
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fnuser wrote: |
local dealer is selling n.i.b. Olympic Arms for @600 |
Wow, that's a great price! What's the barrel length and twist?
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fnuser Super Member
Joined: Dec 23, 2008 Posts: 914 Location: S.W. Missouri, U.S.A.
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Posted: Sat Jul 10, 2010 1:09 pm Post subject: Re: AR Thread!! |
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It looks like the plinker plus on their website, which is real close to what was issued to me, except the barrel is shorter but I like the handiness. Everything else is very familiar. The barrel is 16" it isn't marked with a twist rate.
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slimjim Super Member
Joined: May 16, 2009 Posts: 8314 Location: Fort Worth TX
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Posted: Sat Jul 10, 2010 3:05 pm Post subject: Re: AR Thread!! |
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You got a winner! I haven't heard of a price that low in years. Looks like its a 1:9 twist which should handle up to 69gr bullets. Enjoy.
_________________ "To anger a conservative, lie to him. To anger a liberal, tell him the truth." - Theodore Roosevelt
"The world is a dangerous place to live; not because of the people who are evil, but because of the people who don't do anything about it." - Albert Einstein |
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fnuser Super Member
Joined: Dec 23, 2008 Posts: 914 Location: S.W. Missouri, U.S.A.
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Posted: Mon Jul 12, 2010 1:22 pm Post subject: Re: AR Thread!! |
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o.k. you are right they are pretty addidting, I'm already thinking "What if,". So if I swap uppers for an optics ready half, would you go flat top; or one of the elevated optic platforms that allow use of standard high rings? I can see advantages to both, for instance using standard rings on the elevated platform seems like a much more rigid solution, however, I've also been watching the thread that has the removable base\rings and that looks highly functional (although once I get an upper set I probably wouldn't be taking it apart very often.) The other thing that nags my thoughts is the 6-223 is it worth it or would a tight twist 223 upper get you the same thing from a heavier .223 bullet, maybe a vld?
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