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Posted: 2/21/2008 8:13:00 AM EDT
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Was wondering if anyone else is going through this BS. I've bought 100 Norma and 100 Remington brass and everytime I go to the range I get primers falling out of fired brass. Next time I reload about 10 percent of both brands the primer holes are so large you can push the new primer in with your fingers. I throw them away. What the hell is going on here? I've shot 6PPC Lapua brass way above standard pressures and never had this problem. I've never had this problem with any other caliber, period. Can I make .260 brass with 30-06, .308, or 243? I'd sure like to have some .260 Lapua brass. Can I just re-size .243 brass with a .260 die and be ready to go to the range to fire size the brass? Thanks ,Dale |
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Mad I got this from constructor to tell you: Hey Joe, tell mad 5757 on arfcom his 40gr of benchmark is pushing 67000 psi thats why those Norma pockets are loose. He needs to go back to -45gr of H4350, that is THE load for a 260 nothing else comes close for accuracy or speed under the pressure limit, RE15 would be the next on the list. I hate to see him scatter a new AR |
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Yep I will second that. I got the same message. I was told there is a 260 vs 308 brass thread that will give you the info about it. I was b ack down immediately. When someone that pushes rounds the way Constructor does is very concerned that is SERIOUS! I'm trying to find the threa he spoke of so you can reference it. Sorry I didn't get to His PM sooner. Tiim |
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Thank you JFA and Mr. Constructor. Here is what I got off of Hodgdon's website: 120 GR. SPR SP 120, Benchmark, 37.0, 2768, 51,200 PSI, 40.0, 2935, 59,500 PSI 40.0 grains is their maximum load but I also have no idea what rifle or technique they used to get their numbers? The reason I loaded up 25 test rounds of 40.0 grains for my next range trip is because when I went to the range the last time I loaded up 38.0 grains of Benchmark. The recoil was very mild compared to other powders I was testing that day. And also the 38.0 grains would not cycle the bolt to stay open on the last round from the magazine. I have the JP adjustable gas block and I had it adjusted to operate correctly with all the other rounds I was shooting that day. So, the fact that the bolt wouldn't lock open after the last round and the recoil felt very mild compared to other reloads, is why I loaded up 40.0 grains. Hodgdon is showing 59,500 PSI. However, you guys have me concerned so I am going to pull bullets and load something else. I don't want to hurt me or the rifle. The most I've tried in H4350 is 43.3 grains but it didn't outshoot the Benchmark. The Benchmark five shot group average was 1.712 compared to the H4350 groups of 1.780. All shot at 200 yards. Thank you guys very much, Dale McClure |
A long time ago reloading manuals would tell you this about there load data. They would say this is what they got in the test gun they used or fixture...which means you more then likely will not get it in your rifle. Once a friend and I had identical 357 mag Model 92 lever action carbines from Puma. A certain mag load with a 150 gr cast bullet that performed superb in my rifle, without any pressure signs, flat primers, etc........blew his primers and he had hard exctraction in his rifle. I hardly ever pick a max load from any bullet company, powder company, or good friend. You can work up to a max load, but you can never turn back time on a max load that blows your gun or injures you. |
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