NETim
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Posts posted by NETim
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Apparently it's a sensitive subject. Maybe because too many of us see too many "Shoot and scoot" shooters?
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It's been awhile since I've read the rules, but I'm betting your guns would be legal in some division.
Jump on in. Any trigger time is good time, especially when the range is local to you.
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Measuring a VERY small sample of my "Failure to plunk" rounds (20 total), I find no one particular dimension as the cause for failure. I measured OAL, case mouth dia., case length and max case diameter. Nothing stood out.
However, 7 of the failed cases were CBC. 4 were FC and rest were 2 or less. The major brands like Win or RP were 2 and 1 respectively.
Upon closer inspection all of the failed cases were bulged or had the "swayback" in the case behind the bullet.
So it appears to me that CBC brass is more prone to this bulge thing. Some cases just want to develop a bulge or irregularity during the loading process.
I was barking up the wrong tree with the OAL thing it appears.
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15 minutes ago, rooster said:
9mm can be a finicky beast with oal and crimp. I never new how much until I got a Faxon G34 barrel. Nothing would fit I was going nuts. Anyway here’s what I did. Take a factory round measure the crimp. All the ones I measured were .375. Pull one. Set up your machine to have a long oal, but crimp to .375. You now know that crimp won’t be a factor. Start plunking your round and shortening till it plunks, and falls out. Subtract about .015 and that’s your oal for that bullet in that barrel. Now you can work on enlarging your crimp to around .378-.379 or if you chamber allows to .380. With a Glock gen3 barrel, I could load out to way past SAMMI specs, but with all the guns running minimum spec chambers, and everyone wanting to shoot coated bullets with wide profiles your going to have to load short.
Okay! Thanks! My Glock OEM barrels have spoiled me badly. Now I have to refine my technique and tighten my specs if I want to run the Apex as issued. I'll give your tip a shot.
Thanks!!
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1 hour ago, DryHeat said:
NETim,
I have posted about the very same problem, different guns but same problem. Big variation COAL and high reject rate with my EGW cartridge checker. I do not have a definitive answer, I do have some clues. The Redding Micro seater, which is wonderful on some bullet profiles, gut only some. I have had zero luck with this die and coated bullets. Variation in bullet diameter is a factor, the larger the diameter the closer the bullet is to the lands. I think part of the problem is also mold variation, how many molds are used to make a batch, probably 8, this a big chance for variation. I also think the coatings vary a lot, I can see it but have not devised a simple way to measure it, I am trying to use an R8 collet for tests. Revolvers eat all of this stuff and never even burp. At least one of my buddies guns, all pistols and 9mm, will find something to bitch about.
I don't know a way they can apply these coating with the methods in use and keep them accurate, some thicker, some thin, some thick on one side, I can see this but have not measured it yet. Set the COAL so you have a margin of safety and go for it. If someone knows for sure, please holler up. Thanks
Thank you for the feedback. I've only encountered this issue because of the tight chambered Apex barrel I have on my M&P. I say "tight" because from what I gather from SAAMI chamber dimensions, case mouth diameter of a loaded 9mm round is spec'ed at 0.380". My reloads that measure 0.380" with my Mitutoyo calipers don't want to spin when I plunk them in the Apex. My Hundo gauge will only sometimes complain about these rounds and I thought it was tight! My Dillon case gauge is happy with almost anything.
I'm not getting many that fail in this manner though. I haven't done any detective work to see if the problem is encountered with any headstamp more than others yet. I have a hunch that will be a factor. I have read on other forums that 9mm OAL issues are fairly common and quite often the finger is pointed at mixed brass.
I am hoping that I can simply rely on the Hundo for QA at some point in time. It's a great tool and a real timesaver.
But I have backed off to 1.1" OAL as that seems to be a happy medium. The promiscuous Glocks won't care regardless.
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28 minutes ago, slowhands said:
At our L1 matches, the ROs are shooting too. Often I'm on a squad with only one other RO, and so I get a quick break when I'm on deck, load my mags as fast as I can after I shoot, and otherwise I'm running the timer or at least the tablet the rest of the time. It's a lot of work. Now it's supposed to be my job to police brass and do all the tear down too? No way. Help out or stay home.
L2+ matches are a different story, since set up and tear down can take full or multiple days, but the fees are higher and there are perks for the ROs and staff.
+1 And I act as MD at our club matches, so I get to do all kinds of behind the scenes stuff as well.
I'm not complaining. The club is 10 minutes from my home and we get to have USPSA matches.
I'm happy.
Seriously though, I consider it good etiquette to help with setup and tear down.
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Just now, ML123 said:
I am having the same issue with 147g BBI bullets on a DIllon 750 with Lee die set. I don't believe its the bullet I think is has to do with the Lee seating die and using a flat nose bullet. I posted about this in a couple of other threads looking for direction so please post what you end up finding.
I am thinking the RN bullet seating stem in the Dillon seating die may not match well with the bullet profile. Just a guess. I can measure a sample of bullets and I do see some variance in length. Not a lot but some. I seriously doubt the bullets all come from the same mold.
My 650 is relatively young and is in good shape. The dies are clean. All I've ever loaded on this press has been coated bullets, so it stays pretty clean.
Good luck!
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Another factor with the plunk test is the loaded round case diameter. Naturally, using mixed range brass more or less invites this issue. Rounds that mike .380 at the case mouth are somewhat sticky in the Apex chamber. Cases that mike .378 at GTG.
I think I got spoiled by the generous chamber dimensions of the Glocks. I'm thinking now the case diameter is a bigger factor than OAL.
So, more rounds will be rejected into the practice pile if I do end running the M&P it appears.
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nevermind. FSS isn't going to fly.
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I've been loading 124 grain ACME's for my Glocks with very good results, acceptable accuracy and outstanding reliability. OEM Gen4 17 barrels.
(I think they would chamber 40's if the stars were aligned just right. Very forgiving.) I loaded the 124's at a nominal 1.13". Loading on a 650 with Dillon dies and mixed range brass.
I've just started loading for an Apex barrel in an M&P. I fully expected the necessity of reducing OAL for this barrel. I settled on 1.10" after plunk testing dozens of finished rounds. During the plunking, I'm finding a fairly wide variance in OAL, from 1.03" to 1.16". (Not many but a few.) Generally some of the longish ones, over 1.12, will drag during the plunk and spin but most don't.
To further complicate matters, many of my original Glock recipe loads @ 1.13" pass the plunk and spin. But enough don't pass that it caused me to dial back the OAL.
So, my question is, are others seeing this kind of variance in coated bullets? I realize that cast/coated bullets are not the most precise product in the world but I'm somewhat amazed at the deviation in length/coating thickness, profile, whatever that is causing this variance in OAL and plunk failure.
I'm not looking for benchrest precision just reliability. Striker fired guns don't have much margin for error, especially when running whatever primers I am lucky enough to have on hand. (TULA/CCI/WSP)
Thanks!
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You want better matches? More matches? Want the sport to grow and thrive? Help out! It's as simple as that.
NO ONE is above putting in a little sweat equity into this game.
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10 minutes ago, SteelCityShooter said:
Why would you buy a 1911 spring for an M&P? Wolff sells a variety of recoil springs for the 4.25" M&Ps in all calibers.
I didn't buy them. i had them on hand already. 4.25" recoil springs will function in a 5" gun fine I take it?
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I picked up a Carver SS guide rod for my 1.0 CORE that's supposed to take Wolff springs. I thought it would just be a matter of sliding on a 5" 1911 recoil spring and away I'd go. The 1911 5" spring limits slide travel though.
Am I supposed to cut down the 1911 spring or are there ready made M&P recoil springs for the CORE out there?
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I've been shooting CO with my Gen4 G17's for the last coupla years. I snagged a milled new G17 slide cheap which was my intro to CO.
I had originally planned to shoot production with my Pro 1.0 but cataract surgery came along and kinda messed that grand plan up.
I shot the 1.0 again today for the first time in a long time alongside the Glock and it just felt better, shot flatter and faster than the G17. There simply was a noticeable difference between the two platforms with the nod going to the M&P.
So I found a CORE 1.0 Pro and bought it. It will be the CO gun when I get it all APEX'ed. up.
And away we go!!
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15 hours ago, rowdyb said:
Another curved trigger user here, especially on any gun w a pivoting trigger.
As in the Apex curved trigger?
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What OAL can you run with coated 124 RN bullets with the X5? I load mine currently at 1.13" (Acme)
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13 minutes ago, Stephen7942 said:
agreed! Do you usually deprime before cleaning with brass juice?Nope! I just sort out the 40's and 380's from the range pick up brass and go.
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It's good stuff IMHO. Seems to leave more case lubing properties than the usually recommended mix of Dawn and Armor All Liquid car wax. The brass comes out very clean and shiny w/o pins.
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Tripp CobraMags have served me well. Robust and will fit in the box if your rear sight isn't too tall.
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My old eyes are happy CO exists.
It's not a crime to age, kids.
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25 minutes ago, jubi351 said:
Curious, why not just run the beaver tail backstrap on the Glock?
Sent from my Pixel using Tapatalk
Oh, I do!! I still manage to get bit if I don't get my strong side thumb off to the side. I do most of the time, but all it takes is once.
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26 minutes ago, tanfoglio1911 said:
Check the photo below. That is the highest grip I can hold the P10 but there is still a substantial space for your hands to avoid the slide bite.
Cool!! Thanks!!!
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I've been running Gen4 Glock17's as an entry/introduction to CO. They've been treating me well, but I still occasionally get treated to slide bite if I don't get my thumb kicked off to the side.
I've never handled the P10 but it appears to me anyway that the frame overhangs the grip by a substantial amount, so I"m hoping slide bite would not be a problem for me any longer.
And of course, beyond that, the P10F has much going for it.
Thanks!
Coated OAL 124 ACME
in 9mm/38 Caliber
Posted
Uniquetek has a tip for customizing seating stems:
Uniquetek Tip #10
I used my wife's industrial grade "Little Princess" hot glue gun for this project. 3 minute job once you have all the tools rounded up.
I think it has improved consistency some.