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OP
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I loaded some 150 Gr. ELD-X’s with RL22 for my .280 Rem. I was testing the loads yesterday, and at 53.6 grains I started getting a slight bulge and ring about 1/8” up on the case, but it’s only about half way around the case. I went back and looked at the other brass and they all seem to be fine, not even a ring around the case and definitely no slight bulge. The brass I used is new Hornady brass. I did full length resize as it was bulk packed and several case necks had dents in them from the get go. Is it possible I bumped the shoulder back too much on those particular loads? The gun is 24 years old and up until recently has only shot factory fodder.
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Joined: Jul 2013
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Campfire Outfitter
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Campfire Outfitter
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Don't full-length size new brass. Run an expander ball down into the necks or run them through a neck-sizer to iron out the necks, but don't mess with sizing the body.
I don't know what you mean by a "bulge", but I have many cases shot at 30-06 pressure where the case body above the thick case head has expanded to match the chamber wall dimensions near the base of the case. This isn't a problem.
At the charge which your "bulge" happened, you finally began to develop enough pressure to begin to expand the lower section of the case (where the case wall thins) to match your chamber dimensions. You are nowhere near any actual high pressure with that charge. You are no where near the top operating pressure of the 280, either.
I belong on eroding granite, among the pines.
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Joined: Nov 2008
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Campfire Outfitter
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Campfire Outfitter
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True, never full length new brass, let alone bump the shoulder as it’s undersized anyway. I have seen the bulge he’s talking about on a rifle that had a flaw in the chamber as Cooper called it. Problem is the bulge on mine was a complete circle, not a half circle. In this instance and the brand of brass I would say it’s a bad lot. If you have some that hasn’t been resized follow Hunts advice and see if the bulge disappears.
Swifty
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Sounds strange to me. 1/8th " up and your still in the solid head of the case.
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Campfire 'Bwana
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Campfire 'Bwana
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You are no where close to a max load. If anything, you problem is not enough pressure.
Cartridge : .280 Rem.
Bullet : .284, 150, Hornady ELD-X 2826
Useable Case Capaci: 59.029 grain H2O = 3.833 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-22 *C
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.862% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-08.6 96 53.00 2670 2375 41321 10580 93.6 1.356
-07.8 97 53.50 2698 2424 42555 10695 94.1 1.337
-06.9 98 54.00 2725 2474 43832 10807 94.5 1.319
-06.0 99 54.50 2753 2524 45147 10917 95.0 1.301
-05.2 100 55.00 2780 2575 46512 11024 95.4 1.283
-04.3 101 55.50 2808 2626 47918 11127 95.8 1.265
-03.4 102 56.00 2836 2678 49373 11228 96.2 1.248
-02.6 103 56.50 2863 2730 50865 11325 96.6 1.231 ! Near Maximum !
-01.7 104 57.00 2891 2783 52431 11419 96.9 1.214 ! Near Maximum !
-00.9 105 57.50 2918 2837 54040 11509 97.3 1.197 ! Near Maximum !
+00.0 105 58.00 2946 2891 55703 11595 97.6 1.181 ! Near Maximum !
+00.9 106 58.50 2974 2945 57424 11678 97.9 1.165 ! Near Maximum !
+01.7 107 59.00 3001 3000 59207 11757 98.2 1.149 !DANGEROUS LOAD-DO NOT USE!
+02.6 108 59.50 3029 3056 61051 11833 98.4 1.133 !DANGEROUS LOAD-DO NOT USE!
+03.4 109 60.00 3057 3112 62963 11904 98.7 1.118 !DANGEROUS LOAD-DO NOT USE!
+04.3 110 60.50 3084 3168 64944 11971 98.9 1.103 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 105 58.00 2999 2996 59424 11610 98.8 1.150 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba 105 58.00 2888 2778 52166 11518 95.9 1.215 ! Near Maximum !
Last edited by antelope_sniper; 09/30/20.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Campfire Tracker
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OP
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Thanks gents for the replies. I think I will chalk this up as an anomaly and shoot the other 25 rounds which range from 54.2 gr to 57.2 grains of RL 22 and see how they perform. When I look at my Nosler manual, it has me being pretty close to a maxload with 150 gr bullet. Look at my Hornady manual and I’ve still got a few more grains of wiggle room to go.
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Campfire Regular
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I'm guessing it's a controlled feed bolt action rifle?
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Campfire Tracker
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OP
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I'm guessing it's a controlled feed bolt action rifle?
Negative, push feed Rem 700 BDL
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Campfire Tracker
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I loaded some 150 Gr. ELD-X’s with RL22 for my .280 Rem. I was testing the loads yesterday, and at 53.6 grains I started getting a slight bulge and ring about 1/8” up on the case, but it’s only about half way around the case. I went back and looked at the other brass and they all seem to be fine, not even a ring around the case and definitely no slight bulge. The brass I used is new Hornady brass. I did full length resize as it was bulk packed and several case necks had dents in them from the get go. Is it possible I bumped the shoulder back too much on those particular loads? The gun is 24 years old and up until recently has only shot factory fodder. I get that bulge on a couple 700’s, like the chamber isn’t centered between the bolt face and the barrel. Mild loads it isn’t noticed but the higher the pressure the more pronounced it is. The guns shoot adequately for hunting and I minimum full length resize the brass.
"I was born in the log cabin I helped my grandfather build"
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Campfire Tracker
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I would look at the brass, not the rifle. Have had this happen, and found by sectioning the case, one side was heaver than the other. Toss the defects out...shoot the rest.
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
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Thanks gents for the replies. I think I will chalk this up as an anomaly and shoot the other 25 rounds which range from 54.2 gr to 57.2 grains of RL 22 and see how they perform. When I look at my Nosler manual, it has me being pretty close to a maxload with 150 gr bullet. Look at my Hornady manual and I’ve still got a few more grains of wiggle room to go. Your not shooting a Nosler bullet. That ELD-x will have a very different bearing surface that an NBT.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: Nov 2008
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Campfire Ranger
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Campfire Ranger
Joined: Nov 2008
Posts: 19,596 Likes: 14 |
I loaded some 150 Gr. ELD-X’s with RL22 for my .280 Rem. I was testing the loads yesterday, and at 53.6 grains I started getting a slight bulge and ring about 1/8” up on the case, but it’s only about half way around the case. I went back and looked at the other brass and they all seem to be fine, not even a ring around the case and definitely no slight bulge. The brass I used is new Hornady brass. I did full length resize as it was bulk packed and several case necks had dents in them from the get go. Is it possible I bumped the shoulder back too much on those particular loads? The gun is 24 years old and up until recently has only shot factory fodder. I get that bulge on a couple 700’s, like the chamber isn’t centered between the bolt face and the barrel. Mild loads it isn’t noticed but the higher the pressure the more pronounced it is. The guns shoot adequately for hunting and I minimum full length resize the brass. I've a 700 in 06 that's an early 70's manufacture. I get the ring a little above or in the web, not all the way around too. Shows up mostly in warmer loads. Really ought to rechamber it, but it's sentimental and killed enough critters and shoots well enough I just let it be.
MAGA
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Campfire Ranger
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Campfire Ranger
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In a 700 the ejector is going to press the case toward the opposite side of the chamber so you get a little more expansion on one side. It’s common to see that asymmetry on fired cases.
NRA Life,Endowment,Patron or Benefactor since '72.
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In a 700 the ejector is going to press the case toward the opposite side of the chamber so you get a little more expansion on one side. It’s common to see that asymmetry on fired cases. I can't say I've ever noticed that in the 20 or so Remington 700's I've owned. The only rifle in my possession where it's clearly noticeable is a control feed Winchester M70 classic in .270WSM.
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