If the ammo works in other guns, why would you think the ammo is at fault rather than the first gun? So its denting the primer but not firing the round? B. . Others have rounded edges, and leave a softer dent. When they get a bad batch they pull the whole lot down weighing 10-15 and get the amount "Average" only is off a little. The Collector. Machine guns have generous chambers even by M1A standards. Flattened primers; This is commonly cited as the thing to look for but it is not an absolute. Just took my rifle to the gun smith and he said my buffer is a AR 15 buffer and too light. 8 Common AR-15 Failures 1. If you run into a IP ban afterwards as a member, again - turn off your VPN or switch servers. G17 G26 G30 G36 RG Ind. I told him to follow me down to the range, and that I was here to sight in a 308, but might have an extra 5.56 round or 2 in my range box. Pull down a whole batch of Rifle at 50 grains and ya got some powder sitting there. dry firing rimfires can peen the side of the chamber wall causing the round to not load or get stuck after firing. Centerfire. https://www.tngun.com/ar-15-style-rifle-safety-tip/ http://www.amazon.com/Understanding-Handguns-Self-Defense-David-Nash/dp/1608850250/Sheschinc-20 Today I . I own a bunch of AR's at different price points. If you are bump firing you may be releasing the hammer before the bolt is locked. The primer mix is intended to detonate when sheared between the cup and the anvil by the primer strike. The firing pin spring is there to retract the firing pin and so a stiffer spring would exacerbate the issue if that were the case. The GunSmith says the Bolt is opening too soon causing Primers to blow. Weak hammer spring = weak primer hits and vice-versa. Federal® Centerfire Primers. Sep 22, 2020. AR-15; AK-47 / AK-74 / Everything AK; Shotguns; . That means you don't have to be picky on primers and only choose the hard military ones for reloading, because the spring will keep that firing pin from denting primers significantly when the bolt slams forward on a fresh round. There are primers made with harder or thicker cups if you are a reloader. The barrel shank diameter is .666-inch and the bore diameter is .224-inch. ago I chambered these two but did not fire. TnTnTn Bright rings around the base of the case about 0.4 to 0.6 inches up from the rim can indicate potential case separation. AR stands for "ArmaLite rifle," after the company the . The pin should pop out and retract when you stop pushing on the hammer. Winchester SR primers have 0.021" thick cup. Federal 205 and 205M use 0.0225" cups. I've re-run the ammo in other guns and it's gone bang so we are thinking primers are the issue. The casing is coated in PolyFormance, a proprietary treatment that eases feeding and extraction in a semi-automatic without leaving behind an abundance of . Say 49-50 grains so the Average it out to 49.5 and reload them all. It occurs when a round fails to load into the chamber of an AR from the magazine. 9 out of the rounds did not fire, primer dented but no powder ignition. I'm not talking optics, triggers, bcg's here. I once soaked several large rifle primers in water for about a week with no real agitation. Unloaded the rounds and looked at them under magnifier the anvil was still there but 5 of the 9 you could put a toothpick down one side of the anvil past where the charge would go. I was planning on using 50gr SP Varmit Nightmare bullets and working up a load using H-335. There are five types of AR-15 malfunctions that can occur. some kind of cumulative denting on the primer might have occurred. Re: Building a precision AR-10: Questions about barrel, bolt, twist, etc. As stated above, many have heard the advice that you should never dry fire a rimfire gun lest you risk damaging the firing pin. 1.The shock from dry firing can peen the inside of the bolt causing to pin to protrude to far out and pierce a primer which is dangerous. Sunday Gunday: AR Service Rifle — Focus on Ammo & Reloading. Some primers will flatten at safe pressures, some won't flatten at all and some primers can even blow out of the cartridge.Definitely check for additional indicators if you see this though- I view oddball primers as the clue that closer investigation is required. One common mistake is putting a rifle spring in a carbine or A4 buffer tube. Failure to Feed (FTF) Failure to feed (FTF) is one of the most common malfunctions you'll encounter as a gun owner. You can safely fire 7.62x51mm NATO specification ammunition, marked with a cross in a circle on the casehead, in any .308 Winchester chamber. use your off hand to ease it down while pulling the trigger. I'm not talking optics, triggers, bcg's here. My thinking it is an ejection mark. Winchester® #209 Primers for Shotshells. With the bolt out of the gun I measure .034" protrusion of the firing pin. This will not work correctly with a barrel that is headspaced for a standard AR .30 cal bolt (.454 bolt depth, and .136 diameter). Yep 5 of 15 failed to fire, on inspecting them it showed light primer strikes on the one that failed to fire, barley denting the primer. Oct 9, 2017. It's the same Rem 870 we've come to know and love, and it feels as solid as ever. Plus I imagine a titanium firing pin which is lighter/less mass would mark the primers less. Hodgdon® Smokeless Powder. #824370 04/15/06824370 04/15/06. This tiny M1-style carbine weapon was designed to be amazingly rugged, especially considering how it was originally crafted for the whacking of sly coyotes on the open range. The guys who shoot .223's (5.56) out of an AR-15 with a brass deflector on the side of the upper receiver, will get a dent where the brass bounces off the deflector. First and foremost, striker fired vs. hammer fired is totally distinct from double action vs. single action, DA/SA, SAO, DAO, etc. None. Subtracting the inside diameter from the outside diameter gives .442-inch. . Case dimensions are virtually identical. not so..i have three ar's built specifically for short range br. This is never enough force to cause a slam fire in an AR15 though. SS AR-15-style rifles can be modified, as the gun used in the Aurora shooting was, to use a magazine that holds as many as 100 bullets. Denting some primers, not igniting them.no other trigger/firing problems. IMR Smokeless Powder - Rifle. Shoulder: The stepped, increased diameter from the nose of the pin to the body, or main bulk of that pin. Hoppe's #9 works better for removing primer crud than the BH solvent IMO. 3,570. Just one more tidbit. History first. Beginning with a 1/4-inch twist drill, with the cutting tip ground at a 135 degree included angle, a starter hole was cut to a depth of .125-inch at the punch mark. Radway is known to be underpowered and may not be cycling the bolt. "You got an AR-15, we'll put your ass in jail," she screeched. Posts. Turn off any VPN/safe-browsing feature. . Feb 12, 2019. 10K of 9mm would also be a pile :biglaugh: Shooting the AR180B at the range is very similar to firing an AR-15, with a few minor differences. Keep in mind this doesn't count for jams or breakage. Maryland. I had some misfiring problems where the rifle was denting the primer making a small indentation in it with the round not firing then locking the bolt shut where it was quite difficult to get the round out. I didn't find that a 25# mainspring made any . Starline Unprimed Rifle Brass. It may have weak springs. Seems he was having problems with his Shrubmaster Ar-15, firing pin not hitting the primer. #1. I am absurdly meticulous when it comes to cleaning the bolt. I don't worry about other primer types but in theory it could be an issue, as some are more sensitive than others, and the military spec primers are relatively insensitive. New .222 cases are $30/100 which means $300 just for cases to make up 1000 loaded rds. Answer (1 of 7): Yes. This will not work correctly with a barrel that is headspaced for a standard AR .30 cal bolt (.454 bolt depth, and .136 diameter). Rimfires. A malfunction is something that you can apply a corrective set of actions and get the AR firing again, at least for one more shot. Before reloading, turn each case in your fingers and examine it carefully, searching for cracks. # 3 12-11-2006, 4:28 PM Winchester® Rifle Primers. Winchester® Smokeless Ball Powder. The AR-15 platform uses a free floating firing pin, and it's my understanding that the PTR-91 does not. We do not ban legit Internet Service Providers from the USA (exception for certain individual IP addresses). If thats the case what LPK did you use? #15 Edwardteach72.450/400 Nitro Ex. The 6.5 Grendel unprimed brass is very consistent and will make reloading a simple and easy task. So I bought a R 25 2 years ago and changed my stock. (AR spec call for .028 to .036). If the primer is hit once and it does not go off due to insufficient firing-pin force, the sensitivity is further decreased. Two are common, a couple will crop up every once in a while, and the last, or Type V, you rarely see. I found 1 5.56 in the bottom of my range box. The slam fire can be caused by a high primer or by a heavy, unsprung firing pin. The Rimfire Report: Dry Firing Your Rimfire. When the bolt slams into battery on a fresh cartridge in the chamber, the inertia pushes the firing pin forward enough to bump the primer and leave a mark. Pull charging handle, round chambers. Compared to a Mossberg 500, for example, the gun is head-and-shoulders above the competition. 22 Revolver Walther P22 Springfield 1911 Rock River AR-15. In life, strive to take the high road..It offers a better field of fire. Part 7: Repriming the Cartridge Case Part 8: Powder, Propellants, and Pressure Part 9: All About Primers Part 10: Projectiles: Materials, Weights, and Styles Part 11: Seating and Crimping Bullets So, let's discuss the topic of seating and crimping in the reloading process. If the movement of the firing pin is mitigated by the spring, then it shouldn't react the same way. Spring Recess: The hollow portion of the striker's body that holds the firing pin spring. Running the suggested heavy buffer for 9mm and spring set up for it. Dimpled primers always creep me out. Perhaps I'm not interpreting this correctly, but if some rounds do not discharge the first time but will if fired again, usually means that the firing pin isn't denting the primer enough for the round to go off. I just can't fathom how one empty machined piece of aluminum is worth 10x+ more than another. Joined: Apr 2006 Some reflectors have sharp edges, and leave a sharp dent. custom mauser wont shoot, suggestions? With its steel casing, this cartridge costs only a fraction of what a brass cased one would. 2.It can break the pin. Say 49-50 grains so the Average it out to 49.5 and reload them all. 12. In the striker's case, there is no hammer, so the firing pin's energy comes entirely from the spring in the recess at the rear of the striker. I am set on Gas Port #1. The AR-15 is a civilian version of the military M-16 main battle rifle. No known slam fires out of this gun. 1st rebound went fine then 2nd round fired double with the 2nd round being out of battery. In a couple decades it made muzzleloading and breechloading single-shot rifles entirely obsolete, and it has been touted as "the gun that won the West" ever since the Indian Wars. Reactions . The primer mix, called a pellet, may have been cracked and moved out of the way from between the cup and the anvil. Jun 11, 2009. 3) When your brass lands forward of 3:00 it is often an indication that the brass is bouncing off of the deflector or the like which sends the brass forward landing at 2:00. Should I get Extra Heavy Buffer for this Rifle? Cases Dented by Sizing Lube Excessive application of sizing lube can cause divots in cases, particularly bottlenecked rifle cases. Gun shoots fine without the Suppressor. Does your firing pin tip protrude a little bit, even when it's locked back by the safety? 3) When your brass lands forward of 3:00 it is often an indication that the brass is bouncing off of the deflector or the like which sends the brass forward landing at 2:00. they found out that a 55-grain titanium firing pin allows for reliable primer detonation and eliminates the primer denting or unintentional discharge caused by the inertia. I've been in the gun world for a while. In the late 1800s, the lever action was the AR-15 of its day: easy to load, fast to shoot, and sporting plenty of firepower. Failure to do so will result with your new account denied. No ignition. So I bought a R 25 2 years ago and changed my stock. When you rack the 870, the gun feels solid and well-built. AR15 , (not going to mention make) A colleague has had what I think is a slam fire, he`s vague about how it happened , he says he put the mag in and pressed the bolt release , boom, it fired out of battery and blown the plastic mag out and smashed it , he said "I think it was the Hornady 55gr training ammo I have but it . The case crease marks are orientated to the . This is what. Stated simply, the seating step simply means jamming a new bullet into a cleaned, resized, primed, and powder-charged . . This article notes numerous documented primer punctures with standard SR primers in AR15 rifles and quotes companies such as Speer/CCI, Remington, etc. Starline Brass prides itself on producing the highest quality brass case available. What's the difference? This has resulted in causing FTF apparently. On the ones that did fire it showed a light strike with . Both hammers and strikers offer all of these forms of operation. #1. BUT without the force of the hammer behind it, the firing pin alone doesn't have nearly enough mass to ignite the primer just from the bolt closing. On the converse side, you'll hear many say that this is just flat out untrue. Just took my rifle to the gun smith and he said my buffer is a AR 15 buffer and too light. However, if your rifle does not crater primers on normal loads, and then begins cratering, you can be fairly certain it is being created by over-pressure. Then, go pick up the fired case, drop it in the chamber, and then slam the bolt carrier down on it like it was a hot round. The primer marking is generally considered to not be much of a problem however it is a little troubling. So it changes the game a bit as there is a lot more going in the AR than just closing the bolt, firing a round, then ejecting . It only takes a tiny difference in length on a firing pin to cause issues. Free VPN's tend to get banned too. With an unloaded gun, open the breech, pull the trigger and push on the hammer. It sounds like it may be the typical small mark made by the non-spring loaded firing pin. Pull down a whole batch of Rifle at 50 grains and ya got some powder sitting there. I own a bunch of AR's at different price points. Do not let the hammer fall on an ar15 when the upper is not mated to the lower!! Rifle started as 6BR with SSS Competition trigger.no trigger/firing problems. The 600-yard target has an X-Ring 6 inches (1 MOA) across, while the 10-Ring spans 12 inches (2 MOA). Save Share. Messages 13,816 Reaction score . Additionally, the firing pin strike mark on many primers seems to be oblong instead of round. Even if a powder charge reduction does cure the piercing problem, I would still look at the firing pin to make sure you do not have excessive denting of the primer (that could cause ignition) at bolt closure. I am shooting a Ruger SR762 with a Suppressor that is Jamming and blowing Primers. Pre-Ban vs. Post-Ban. The stock is . Went to try it out today and after 2-3 shots, I closed the bolt and it fired the round (no my finger wasn't on the trigger). This rifle is destined to be one of the great rifles of all time. No more hours of trimming and sizing, thanks to the steps Starline takes to ensure the rifle brass is correct when it leaves the factory. The 6.5 CM in Ar's has always had a Primer puncturing issue & is why some use small Primer pocket Brass & small Primers for reloading ,also for longer Brass service life.The HP Bolt helps but not with all loadings . I think the AR15 design is drop safe when used with GI type firing pins and ammo with military spec primers. If the rounds are firing but its not picking up a new round it could be due to the ammo you are using. 455. However, about 80% of my friends XD45 brass casings have 0.3 dents/creases running around the case. This is when the primer inside the shell is lightly struck by the firing pin without being hard enough to ignite it. It did not, however, have a long service history. recently bought a NIB Ruger Security 9. Often the shooter gets a face full of gas and small particles or oil from the bolt itself. Blew torn apart brass out the ejection port and the mag out of the bottom. That clearance means nothing for firing pin tips that usually stick out at least .060" past the bolt face and most primers need dents at least .020" deep to fire. CCI are among the harder primers and usually good solid performers in AR style rifles. Oct 8, 2020. G Mayay on November 14, 2021 at 6:53 pm. Not even a hint of a dented primer from the firing pin. In the days before amateur, high-precision shooting from the bench, gun consumers weren . February 25, 2019 By Joseph von Benedikt. . If you let the hammer fall it can strike the boltcatch damaging your boltcatch or possibly your lower TZapp said: Take the upper off of the lower and try to fire it and watch to see if the hammer is dropping. This was on a Thursday, Friday went to range to break it in, well it broke during the first mag. Most of the LC, even the M118 LR is crimped primers so that is an extra headache. There's a noticeable but shallow dent in the primer. Using what's probably the weakest commercial 10mm ammo available (Prvi Partizan 180gr JHP), my spent brass is ejecting anywhere from 12.5 feet (with the EGW stop, beveled but untapered, with the 21# mainspring) up to 17.5 feet (with the EGW stop, beveled and tapered, with the 21# mainspring). Holding the upper ass'y level tilt the receiver end downward to about a 30 degree angle; if the bolt doesn't slid out on its own, start looking for evidence of interference. I just can't fathom how one empty machined piece of aluminum is worth 10x+ more than another. Alliant Powder® Smokeless Powders. The force firing pins put on bottleneck cartridges is enough to set case shoulders back .001" or more before the round fires. Messages 2,868 Reaction score . The firing pin in an AR15 is free floating inside its chamber. I've read about "enhanced" firing pins for the 7.62 AR. It doesn't get much more American than the old Ruger Ranch Rifle: the Mini-14. As described above, a poor firing pin fitment to the bolt face can cause it on its own. This 223 Rem ammo by Wolf helps to take some of the sting out of what can be so costly a pastime. If that's not the problem, then check the buffer. Winchester® #209 777 Primers - 100-Pack. It fits great and scrubs the hell out . Reactions: maconbacon. It's easy to test the firing pin function on those guns. In other words, the shell does not fire and bullet does not come out of the barrel because the primer did not generate a big enough spark to ignite the gunpowder. I asked him to break down his AR, and let me look at his BCG. Double action means that pulling the trigger performs two actions: (1) it cocks or finishes cocking the spring responsible for . More concerned with AR lightly denting primer upon chambering. For example in the case of a Ruger 10/22, unless you keep a close watch on how many rounds . Ok. Let's trigger some people. The forward inertia of the bolt upon chambering a round causes the firing pin to bounce forward with just enough force to leave a small mark on the primer. __________________ Please, calm down. Never been a fan of floating firing pins. Rod: Yes it's denting the primers but not going bang. Sizing such brass can be done,trimming will be required, but the generous chamber means a case head separation will be sooner than rifle fired ammo. A lot of weapons that function really well and have for a really long time. Loaded 40 test rounds for 7mm Remington Mag. I haven't tried that however-just speculation. During Wednesday's edition of ABC's ignorant liberal hate-fest, "The View," Whoopi Goldberg said people who own AR-15s should be reported to police and thrown in jail. Here's one way to spend the day removing a stuck case from an AR-10 build. I ran a box of flat nose federal coated 150 gr roundsall was fine. Fire a round, then unload the gun. Took my M5E1 build (all Aero parts unless otherwise specified) out yesterday for the first time: matched M5E1 ODG cerakote receivers with 15" M-Lok hand guard, 16" QPQ barrel, low pro GB, melonite gas tube, LPK, nitride BCG, A2 flash hider, carbine buffer kit, Troy BUIS, Magpul CTR/MOE grip/AFG, and some Ergo rail . The 7.62x51mm NATO round is the lower pressure version of the .308 Winchester. U.S. Military. The following article is about reloading for NRA/CMP Highpower Rifle competition and is geared toward competitors shooting the AR15 Service Rifle. I've been in the gun world for a while. It looks like the bullet jumped while in contact with the firing pin. Dec 9, 2017 #8 Uzi.308 Win. I probably just need to scale back and buy and load 200 cases at a time until I get to that magic 1000 rd stockpile I have in my head. Reply. It sounds more like you have a problem with the firearm rather than the round itself. 10K of 9mm would also be a pile :biglaugh: Jeremy S. for TTAG. The firing pin channel will accept a .17 HMR brush for anyone who is as insane as I am when it comes to cleaning. most has been covered. Had Kevin Rayhill install a new, stiffer firing pin spring. Failure to Feed What's really annoying is that it can happen at any time. Went to try 115 gr fmj. I find this a little confusing. warning to NOT use their standard SR primers in .223/5.56x45 ammunition. I had some misfiring problems where the rifle was denting the primer making a small indentation in it with the round not firing then locking the bolt shut where it was quite difficult to get the round out. Over all, Federal primers were the softest and Winchester the hardest with Remington and CCI very similar. Same deal on all the ammo I brought. Ok. Let's trigger some people. The tell-tale sign of a dangerous primer crater is very jagged edges on the crater rim. Primer Flattening The lower has nothing to do with primer denting, make sure your hammer is staying locked back in the trigger pack after the carrier passes . It is the hammer spring that influences the strike of the firing pin on the primer. It was probably due to light primer strike. Rechambered to 6 Dasher. When they get a bad batch they pull the whole lot down weighing 10-15 and get the amount "Average" only is off a little. The AR is made to not fire out of battery so the hammer is not even hitting the firing pin. The first attempt to remedy any stoppage of an AR-15 should be what those in the know call Immediate Action: "Tap, Rack, and Reassess." "Tap" your magazine to be sure it is properly seated "Rack" pull the charging handle of your AR-15 back swiftly with ample force and release it cleanly NRA Life Member Save Reply M mikeg1005 Banned Joined Dec 3, 2009 Then, when you put the gun up against some competition, and you start to realize just how good you have it. unless the rounds have really hard primers. The M1 Garand was, in no small part responsible for victory in WWII and as such, was a great rifle. Posted February 16, 2016. I will make a video of it denting the primer on a round and then remove the bolt and mail it to anyone who doesnt believe its clean. The case neck is often work hardened due to sizing and expansion during firing, leaving the shoulder and case body relatively soft and in some cases (pardon the pun) vulnerable to pressure deformities from gas blow by from the unsealed neck. A lot of weapons that function really well and have for a really long time. A post at Primetimer said it was part of an ongoing "debate" on the program over guns: Background. CCI® Primers - Per 1000. In the below-embedded video, you can see how deeply the old heavy firing pin dents the primer upon merely releasing the . 3 min. I then removed them from the water and let them air dry for about a week. you can move the gas block out 2 inches and rechamber to a std length..so do 26 then 24. a gas valve/adjustable block/ weighted carrier/trimmed ejector spring will help save the brass.
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