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  #1  
Old 06-16-2012, 2:00 AM
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Default AR-15 5.56 Primers... CCI # 41

I'm looking to make my first primer purchase.

I understand these primers are for firearms with floating firing pin to help prevent slam fires.

Does anyone else make primers that fit this criteria? I dont mind buying a few different brands and trying them out...

Also, does anyone make "match grade" primers for floating firing pins?
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Old 06-16-2012, 5:55 AM
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This should answer all your questions ;

http://www.jamescalhoon.com/primers_and_pressure.php

and this ;

http://www.6mmbr.com/223Rem.html
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Last edited by NotEnufGarage; 06-16-2012 at 6:09 AM..
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Old 06-16-2012, 7:09 AM
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I use 450s because of the harder cup. But most CCI primers have hard cups anyway. Just adjust your first loads as necessary. I try to stay away from the softer WSP.
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Old 06-16-2012, 8:04 AM
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Here is a primer cross reference chart to help with is A the same as B questions.

http://www.handloads.com/misc/primers.asp
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Old 06-16-2012, 11:06 PM
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I'd recommend just staying with the CCI #41, adjust your loads, powder and bullet type but keep the primers consistent till you find the one that works the best w/ your rifle.....
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Old 06-17-2012, 3:30 AM
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You don't really need the CCI #41 which is a few buck more per sleeve than the CCI 450 or CCI 400 (depending which powder you choose). I've used both CCI 450 and 400 for years and are quite happy with them. But if you happen to see CCI #41 on sale then by all means go for it.

Last edited by ireload; 06-17-2012 at 3:57 AM..
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Old 06-17-2012, 3:37 AM
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Properly seated primers in properly maintained firearm will not slamfire no matter how hard or soft the primers are. I've always worried about proper primer seating depth and never worried about which SRPs I'm using.
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Old 06-17-2012, 5:08 AM
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Quote:
Originally Posted by CSACANNONEER View Post
Properly seated primers in properly maintained firearm will not slamfire no matter how hard or soft the primers are. I've always worried about proper primer seating depth and never worried about which SRPs I'm using.
Yeah, but wouldn't it suck to have a slam fire at the range and then find out the guy 3 lanes down from you is ATF?

The make the #41's for a reason. Slam fires may only occur infrequently, but they can and do happen. I guess it's all a matter of whether you're willing to deal with the consequences of it when it does occur.
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Old 06-17-2012, 6:24 AM
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Quote:
Originally Posted by NotEnufGarage View Post
Yeah, but wouldn't it suck to have a slam fire at the range and then find out the guy 3 lanes down from you is ATF?

The make the #41's for a reason. Slam fires may only occur infrequently, but they can and do happen. I guess it's all a matter of whether you're willing to deal with the consequences of it when it does occur.
There's nothing illegal about a slamfire. It is unsafe fot the gun,the shooter and even the guy three lanes down but, malfunctions are not illegal unless you keep shooting. I've got zero problem shooting near LEOs and experiencing a malfunction. There will be zero legal consequences if this ever happens.

Do you think Federal, Remington and Winchester use CCI primers for their .223/5.56 loads?
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Old 06-17-2012, 6:36 AM
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I will admit I am not the most knowledgeable reloader but I am also not the dumbest. But it is my opinion that unless you are shooting competition you won't know the difference.

For example I was buying primer just the other day. The guy tried to sell me BR-4 from CCI. He said people on the net are getting 30 to 50 FPS more using those. Really 30 to 50 FPS is going to make a difference? Not according to any ballistic table I have ever used.

And CSACANNONEER is right...shooting next to a LEO and have a malfuntion is not a crime. Nor would a leo probably do anything about it.
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Old 06-17-2012, 6:43 AM
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Quote:
Originally Posted by Ken Woodford View Post
And CSACANNONEER is right...shooting next to a LEO and have a malfuntion is not a crime. Nor would a leo probably do anything about it.
I don't know about that. I know some Federal agents who would offer their help and expertise in trouble shooting any problem.
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Old 06-17-2012, 8:16 AM
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I picked up the CCI #41 primers to get the ball rolling on the reloading process. Its the only small rifle primer I could find locally and Im just happy I didnt have to deal with any shipping or hazmat fees since its the only item I bought.

Worked out to 3.5 cents per primer... not the best deal but it could have been worse.

Thanks everyone for the help and links. I did learn something from this thread.
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Old 06-17-2012, 10:40 AM
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Want to know more than you thought you would ever need to about primers?
start with post #7 here http://www.calguns.net/calgunforum/s...hlight=primers
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Old 06-17-2012, 11:16 AM
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I have been using cci 400's in my AR's without any issues.
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Old 06-17-2012, 11:41 AM
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http://bulletin.accurateshooter.com/...imers-for-ars/
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Old 06-17-2012, 12:43 PM
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CCI400 user here too . no slamfire yet . plus those harder cup primers are very pricey lol
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Old 06-17-2012, 12:59 PM
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I have some federal gold match and some cci match primers. I will post up some reviews / chrony results when I get around to loading them.
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Old 06-17-2012, 5:38 PM
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My Hornady 7th Ed. manual recommends the use of Winchester Small Rifle primers and I have used that to great success. My loads with Hornady 60gr SP and 75gr BTHP w/Varget powder gets me ammo that shoot 1/2 moa.

My 16" 1:9 twist AR gets the 60gr and my 20" 1:8 hvy barrel gets the 75gr.

I can't complain.....
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Old 06-17-2012, 5:50 PM
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small rifle primers work fine
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Old 06-18-2012, 7:21 AM
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I have yet to have a slam-fire, and have reloaded about 1500 rounds, and just received my 1st 100pk of #41's ever, but have yet to try them out until I acquire/make more brass.

If you are checking chambering, and cycling rounds via mag in your home, you DO NOT WANT A SLAM-FIRE for sure.

I have been using CCI #400 Small Rifle primers this whole time.
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Old 06-18-2012, 1:50 PM
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CCI 41's aren't the only ones with the harder primer cups for free-floating firing pins.

Tulammo also sells a primer that's made for this. The version to get is either the KVB-556M magnum primer. There's also a KVB-223M magnum primer that is said to use the same cup as the 556M, but is just ever-so-slightly less hot than the 556M version.

BTW, yes, the Russian primers work just fine. Here's a link to the Murom Apparatus Producing Plant's Web site, the English language version.

http://www.mpzflame.ru/english/primers.php
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Old 06-18-2012, 3:33 PM
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What CSACANNONEER said about the matter is rock solid, advice that I cannot add anything to except:
I have shot in dozens of matches where the shooters were firing every commercially available primer. Including WOLF which sometimes has a bad rep.

I have shot thousands of semi-auto rounds in both pistol and rifles out of M1 Garands, Carbines, M1A and others. I shoot regularly in practice mode with buddies who have AR's and routinely shoot 500 rounds per session ea.

There has not been a "slam fire" in andy and all of these excursions. Thick cup, thin cup every primer variation made. None. If your weapon slam fires you have other issues than a primer (if seated to the correct depth). Its snake oil.
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Old 06-18-2012, 4:29 PM
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Quote:
Originally Posted by Cowboy T View Post
CCI 41's aren't the only ones with the harder primer cups for free-floating firing pins.

Tulammo also sells a primer that's made for this. The version to get is either the KVB-556M magnum primer. There's also a KVB-223M magnum primer that is said to use the same cup as the 556M, but is just ever-so-slightly less hot than the 556M version.

BTW, yes, the Russian primers work just fine. Here's a link to the Murom Apparatus Producing Plant's Web site, the English language version.

http://www.mpzflame.ru/english/primers.php
Before I scored 10,000 CCI #41's for $20/1000 I had loaded about 5000 rounds with the Wolf KVB-556M primers with zero issues. Those were only $15.50/1000 back when Powder Valley had them. That alone was worth the Hazmat fee.
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