28 Nosler problems

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gcamp54

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Have been having 2 problems with my custom 28 Nosler. First is reloading once fired brass (using Nosler brass). Loaded up 195 bergers with 85.5grs of RL33 and 215m primers. New brass loaded without a problem. During second reload having problems chambering the rounds. Tried full resizing same brass and still not chambering. Measured the case base and same width for those which chamber and those which do not chamber. Tried chamfering a good edge which doesn't help. Checked overall case length and well under what I measured the chamber. Neck turned some which actually helped for only some of the rounds. Measured all the bullets and are all within caliber specks. I'm out of ideas and was hoping someone could help. Problem #2 is that when the smith chambered my barrel he extended the throat about .150 more than I asked so that is what my current jump is. Can't load the bullet out farther due to magazine length restrictions. For this problem I'm thinking about just finding a smith with experience building the 28 Nosler and re-barreling again. Just for completeness purposes the rest of the rifle is a Stiller predator action, Bartlein barrel, pillar bedded in a McMillan HTC stock.
 
Do you have a headspace comparator to measure the fired case and sized case to measure the amount of sizing (aka shoulder bump).
 
It sounds to me that your not actually bumbing the shoulders back. I would take the firing pin assembly and ejector out of the bolt. Size a piece of brass. Try and close the bolt. Keep going tell the bolt barely flops down on its own. Go back 1.5-2 thou past that. I wouldn't worry to much about not magazine feeding. I have a bdl, but have seen people use mags for the longer throats. He throated it for the 195s which is usually around an3.75 coal.
 
Sounds like a headspace issue to me. Match grade chambers headspace dimensions often are set at exactly to what a full length sizing die is. You can take a thousands or two off the top of your shell holder,when bottomed out on your die this will set back the shoulder. Redding makes a shell holder kit for doing this also if you can afford it! Good luck
 
JakeM300winnie said:
Sounds like a headspace issue to me. Match grade chambers headspace dimensions often are set at exactly to what a full length sizing die is. You can take a thousands or two off the top of your shell holder,when bottomed out on your die this will set back the shoulder. Redding makes a shell holder kit for doing this also if you can afford it! Good luck
Click to expand...
Be careful taking any amount of material off the top of your shell holder, I know, I had same problem on my 28 when I had it built, new brass loaded fine, full length resized and had hell with closing bolt. I shaved a little of my shell holder down, worked for about two resizing before the shell holder top busted and I had a case stuck in my die... I am not sure if you are camming over when you are resizing, but try that first, if no better, then take a few thousandths off the bottom of your sizing die, you will need to repolish the edges after, but it will work, that is what did. After this I invested in headspace comparator, Hornady makes one, and measured my fired case and then bumped my shoulder back .002, this will help in saving your brass life from stretching.
 
Kmccord said:
Be careful taking any amount of material off the top of your shell holder, I know, I had same problem on my 28 when I had it built, new brass loaded fine, full length resized and had hell with closing bolt. I shaved a little of my shell holder down, worked for about two resizing before the shell holder top busted and I had a case stuck in my die... I am not sure if you are camming over when you are resizing, but try that first, if no better, then take a few thousandths off the bottom of your sizing die, you will need to repolish the edges after, but it will work, that is what did. After this I invested in headspace comparator, Hornady makes one, and measured my fired case and then bumped my shoulder back .002, this will help in saving your brass life from stretching.
Click to expand...
I tried over camming with my body resizing die by 1/4 turn of the die and that did the trick. Interesting observation was I tried it with one of the pieces of brass I did not neck turn and it chambered but was a little sticky ejecting the loaded rnd (disclaimer: took the firing pin out for this test). Then I Did the same to one of my turned necks which would not chamber. That loaded round chambered and extracted smooth as silk. I turned the necks to .012 thickness. Now I'm thinking I should do both, neck turning and over cam resizing to all my brass. Any comments on that? Big thanks to all the replies for helping me with this dilemma.
 
BTW I already have the Redding competition shellholder set which fits the 28 Nosler so I'll try that next instead of over camming.
 
I also found, after about 50 plus rounds, probably closer to 100, I just happen to get that comparator for head space from Hornady. I was still at the time over camming the heck out of my brass, but with the comparator, I had to stop the over camming and start over to get the .002 bump, when that occurred, I was not even touching the shell holder anymore and the rounds still loaded without any pressure on closing the bolt. I took it, with the rifle chamber being new, the break in changed the chamber, size? Not sure if that is correct, but that is the only thing that could have changed, because the over camming with the comparator was showing almost three times the amount of shoulder bump. With that new chamber that is what it took to close the bolt without pressure.
 
Another thought similar to what Kmccord mentioned. I have had 2 other match rifles who had a similar problem. Same Lapua brass. Would not feed into the chamber after first firing. Both were also new Bartlein barrels also, same as my 28 Nosler. All I did after many measurements to find what was different was turn the necks. No problem since with just neck sizing. So I was wondering if the chamber dimension changed after heating up from firing. Initially I blew this off as not a possibility but now I'm wondering again. Anyone else have this same experience?
 
Had an similar issue with my 26 nosler. I have PTG headspace gauges that I checked and rechecked rifle headspace with. I have a forster full length sizing die. I ended up having to grind the top of the shell holder .010" to allow the FL die to knock the shoulder back enough to chamber. It works like a charm now. I think it a tolerance stack issue or something with the shell holder/fl sizing die. I take a fired case that doesn't want to chamber easily and slowly turn in the FL die and size the case until the case will barely chamber. Same process I use for my 300 WM.
 
I don't have any real ideas for you guy's but did wanna bring up the Redding competition shell holder set. I have a set for my 300wm and I'm pretty sure they all are taller than standard shell holder's in .002 increments. Meaning using these shell holder's will not let the die push the shoulder back as much
 
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