Neck tension- Who is wrong? Montana gold or myself?

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Reefinmike

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This is an old issue that has been sitting on the back burner after two emails with no response(I waited until ~august to bother them because of panic mode).

I bought a 100 bag of 185gr montana gold 45 jhp bullets at a gun show around February to give em a try before buying a case at a time. I loaded up all 100 using mixed brass(mainly R-P, winchester, ppu and pmc). New bullet profile meant new die settings so I reduced the flair(was using .4525" cast) to barely hold the bullet up on the shortest sized case- enough to hold the bullet in place firmly on the majority of brass. Then I used the longest case I could find out of 20, sized, expanded and slowly adjusted the seating/"crimp" die down until any visible flair was gone... using calipers I double checked my work. basically I know how to set up a taper crimp die... just get any bell out of the case but nothing more.

Upon completion I did the ol push test and what do ya know? 60 of the 100 pushed right on in with ease. I pulled the offenders and what do ya know they measure in at .449. i finally called montana gold today after it was obvious they weren't going to reply to my emails. Despite explaining that Im fully aware of how to properly remove the case bell, the guy told me I screwed up, they sell millions of bullets a year and they are never wrong. I was put off by his attitude and unwillingness to listen so I dont think I will ever buy from them again.

Im using lee 3 die 45 set. A sized case body measures .466 fresh out from my sizing die. My understanding is that the taper crimp in the die just barley kisses the mouth of the case when properly expanded/crimped... nothing else contacts the case wall past the top say .03"... I know this because a loaded round will slide in and drop right out no problem. I did not use a factory crimp die. I just adjusted the die all the way down and threw a bullet in to prove myself right and yes, that certainly did swage down the bullet and was not pleasant feeling.

The bullets I pulled are consistently measuring .449" all the way down the bearing surface of the bullet. If I were to over crimp as I did in my little test a minute ago, only the offending portion of the bearing surface upwards towards the nose would be affected and the base of the bullet unaffected... exactly what happened.

I explained to the guy that I know what im doing and his only responses were "you are over crimping" and "We never mess up, every bullet is perfect" very off putting. Even if they make this right I doubt I will ever buy from them again. Two unresponded emails and a snarky phone conversation. :barf::barf::barf:

They are wrong, right?
 
Too bad you did not measure any before loading. That said, Remington brass tends to be thin in .45 ACP and some sizers will not reduce it enough for proper neck tension.
 
First, a taper crimp really isn't really a correct term for what it really does. It simply removes the bell put on by the expander die. Where as a roll crimp used on revolver cases utilizes the crimp grove in the bullet to keep the bullet from moving. So, increasing the taper crimp won't solve anything, but make actually create other problems. In fact, you should be able to pass the bench push test without taper crimping the case at all. This all assumes the bullet is not undersized, I think .451 is the spec .45 ACP.

The root cause is probably lack of neck tension below the crimp. This can happen if the expander stem is a bit too big, expanding the case too much. Also you may find the resizing die is a bit out of spec, not resizing the case small enough. Either of these only needs to be out of spec by .001 to cause this issue.

I have a set of .45 ACP dies from RCBS with the resizing die out of spec where I was having the exact issue you describe. I figured this out by seating a bullet without using the expander die (eliminating one variable), and the bullet would still fail the bench push test. Then resized the same case using an RCBS .45 Colt die, then belled the case using my original expander die, seated the same bullet, and it passed the bench push test.

At that point I called Dillon and ordered a set of their .45 ACP dies as I was planning to purchase one of their presses later down the road anyway. I was told by Dillon that their dies actually size a bit tighter (~.001) than other brands. You can actually see this when you seat a cast lead bullet (.452), as the case has a bit of an hour glass shape to it. Since then, I have not experienced this problem in 1000's of cases.

Not bashing RCBS, Lee, or any other brand, I just think I got a bad resizing die with my RCBS set. I did speak with RCBS, and they were willing to warranty the die if I could find the receipt where I purchased them. I couldn't find it, so gave up on that plan. Here's a plug for Dillon's no BS warranty -- they don't care if you have the original receipt, or even if you're not the original purchaser. If a Dillon product has an issue, they'll take care of it without question! If you can, beg/borrow/steal a set of dies from someone not having this issue and see if that resolves your issue.
 
I too have run across dies that were out of spec which caused the same problem your experiencing. And at first I thought it was something I was doing wrong. Then again, I've also had RP brass that was the problem, which is really not all that unusual.

GS
 
gamestalker- My die resized cases to .466... a good bit smaller than the .472 it comes out to be after loading a 230gr .451 hornady fmj ball. If I color a case in black sharpie and run it through my taper crimp die how I always set it up, the only metal on metal contact is in the top .02-.03"(if that) of the case mouth... there is no way my dies are swaging down the bullets. There is no brass on die contact past the lip of the case during seating/"crimp".

wmurphy- as stated, totally 100% aware that the die is not intended to put a tapered crimp on the case of piece of auto brass as roll crimp is done on a revolver cartridge. neck tension depends 100% on the proper case sizing, wall thickness and minimal expansion/crimp. crimping anything without a cannalure is simply damaging the bullet and reducing neck tension.

walkalong- I know, right? Im waiting for RC to chime in and say im wrong and that removing the bell on a case mouth will swage a bullet completely down .002" along the whole bearing surface. Not 100% sure of the composition of those I loaded at first, but usually my range pickup is 40% winchester, 15% R-P, 10% pmc, agulia, S&B, 20% federal and blazer spp brass etc etc and yeah I know thats 105%... for the sake of even(ish) numbers.
 
You bought a baggie of a hundred?
And they set back easily and measure .449" when pulled?

Pull and discard, 100 bullets is not worth the special treatment it would take to use them.
 
meh, its a matter of principle and a company owning up to a mistake. Not to mention ignoring emails and rude customer service.

no way they are getting discarded, If MG ends up giving me the finger on this one, I'll just melt the lead out and mix it in with another alloy and throw the jackets in my scrap jar. No need to waste perfectly almost good bullets :rolleyes:
 
A few years ago I purchased a (K) of Montana Gold 230gr FMJ and a (K) of 230gr JHP. I loaded a bunch of these and was having similar issues.

I then measured a random sample of both types of bullets. Like you my bullets were small, they measured .449.

I contacted MG and was told I was wrong, but if I was not happy with their bullets I should send them back for replacement. I sent the remaining bullets back on my dime. They counted the bullets and deducted the price of the used bullets. I replaced them with 9mm JHP that I am very happy with. That said, I will not use their 45 bullets again. YMMV
 
I don't care how you flare or crimp the rounds, having bullets mic out at three thou under spec is gonna cause neck tension issues.... Is this measurement consistent from the shoulder to the base of the bullet?
 
I am quite interested in a better explanation of what the MG rep said to you. Your version sounds quite one sided. Maybe he had an explanation that made more sense that could have still been wrong but understandable that he would think that.
 
That's Montana Gold Bullets "customer service" for you. I had a bad experience with Montana Gold a few months ago too and I'll never buy their bullets again.
 
I am quite interested in a better explanation of what the MG rep said to you. Your version sounds quite one sided. Maybe he had an explanation that made more sense that could have still been wrong but understandable that he would think that.
When I first called, he answered "montana gold" No Hi, Hello, what can I do for you etc. I went on to tell my story during which he was very unresponsive( No "yeah" "huh" or "mmmhmmm"s between when I paused to signify he was following what I was saying.) from there he just told me that I am crimping too much, brass springs back and bullet wont blah blah blah. I insisted that I am fully aware that you should not crimp, just remove the belling, I know what im doing, havent had problems with hornady bullets at all etc etc... to which he replied "look, you are sizing down the bullets with your taper crimp, our bullets all come out perfect, we sell millions of them a year and we are a main supplier for competition shooters. Our bullets never have problems, you are creating the problem"

very rude customer service to say the least. Even if they make things right, I will never buy their bullets again.
 
similar problem

I have some of Montana's 38 cal 142 TC's. When I reloaded the first batch of 50 I seated the 1st bullet a little too deep and it fell right to the bottom of the case. After doing 2 more I realized that I could not let the case mouth go past the middle of the cannelure groove. I know it does not make any sense, but if I pushed the bullet in any deeper, it would drop to the bottom of the case. I roll crimped a few that did stay in place and they failed the push test.

I decided to try a different sizing die. I had been using a 2 year old Lee carbide sizing die. I switched to an old Lyman sizing die that I picked up at a flea market some time ago but never used. The results were much better but still some failed the push test. Then I tried something else. I doubled stroked the sizing die. I figured if there was still some resistance then some sizing was still taking place. These passed the push test.

I found that I need to double stroke the cases when sizing and using the .142 grain Montana bullet. Curiously, I don't have to do that with any other brand of jacketed or plated bullet.

I also had an issue of some fouling with their bullets. Sent them an email and received a timely but rather mundane response.

I found good sources for Zero, Berry's and Extreme bullets. Goodbye Montana.
 
A baggie of a hundred at a gun show? They hadn't been previously loaded and pulled had they?
 
You ask if Montana Gold is wrong, and at the same time you want to know if you are correct. I have a responsibility to be fair and objective, in my opinion your are limited in knowledge and skill. First, measure.

F. Guffey
 
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Of the 60 that pushed back into the case, how many were Remington cases? You mention you were using Remington brass and it tends to be thinner than other brands. I've had this issue in .44 mag, but it was only with Remington brass. All other brass was fine.

Just food for thought.
 
Of the 60 that pushed back into the case, how many were Remington cases? You mention you were using Remington brass and it tends to be thinner than other brands. I've had this issue in .44 mag, but it was only with Remington brass. All other brass was fine.

Just food for thought.
see post #5... about 15%.

fguffey... Im not following you.
"in my opinion your are limited in knowledge and skill" If you believe that I am doing something wrong to swage down the bullets, please contribute what you believe I am doing to evenly swage all bullets down to .449" using the crimp/seater die that doesnt contact but the top few hundredths of the case. I believe Ive posted plenty of information on my end.
 
Doesn't sound like a thing is wrong with your dies or technique, .003 under is way out of tolerance. My Missouri Bullets have always measured .452 right on the money. BTW that has worked fine even with Remington brass. I'd probably call Montana back and push em to resolve the problem.
 
Yeah I guess I was just looking for someone to prove me wrong... could a strong taper crimp swage down the upper part of the bullet? you betcha. whole bullet? I wouldnt think so unless cases were made of titanium and squeezed the bullets down... I just couldnt see a sized soft brass case passively swaging the entire "shank" of the bullet down .003"
 
Reefinmike said:
Yeah I guess I was just looking for someone to prove me wrong... could a strong taper crimp swage down the upper part of the bullet? you betcha. whole bullet? I wouldnt think so unless cases were made of titanium and squeezed the bullets down... I just couldnt see a sized soft brass case passively swaging the entire "shank" of the bullet down .003"

Hey, I'm with ya. You won't see me trying to convince you that you are wrong. I've been there done that with MG. You Know you are right, you don't need me or anyone else to convince you. You are lucky, it's only a 100 bullets, I had 2K I had to send back.
 
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