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Posted: 11/24/2010 3:52:56 PM EDT
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I've been shooting Rainier plated 230gr round nose .45 ACP loads for quite a while now. They always run great. I use 4.3gr of Titegroup which might be a tad hot but work nice. Anyway, I just took delivery of a 45 supressor and started shooting these loads through the can. It seems that every shot leaves like 5-6 cracked pepper sized pieces of jacket in the can rattling around. So I thought maybe it was my load. I dropped the load to 4.0 grains and the same issue. Then I checked the crimp, I took a made bullet and pulled it, the sides are perfect, you can't even tell it was loaded so it's not the crimp messing up the plating. No idea what's causing the jacket to separate. Could it be anything to do with the pressure of the can? Any way for me to test this without the can to see if they are separating?
Last, I took some factory FMJ ammo and shot 5 rounds and it didn't produce any flakes of jacket. So that tells me that the can isn't scraping the jacket. I even looked in the can and there's no baffle damage or streaking of copper in there. It doesn't seem to harm the can but it can't be good for it in the long run. Should I back down my load even more to see when it stops happening? 4.0grains seems like a pretty moderate load according to my books and the Hodgdon website. Any ideas on how to get this load to work? Should i just pony up the extra dough and shoot all FMJ jacketd bullets? |
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Quoted:
I've been shooting Rainier plated 230gr round nows .45 ACP loads for quite a while now. They always run great. I use 4.3gr of Titegroup which might be a tad hot but work nice. Anyway, I just took delivery of a 45 supressor and started shooting these loads through the can. It seems that every shot leaves like 5-6 cracked pepper sized pieces of jacket in the can rattling around. So I thought maybe it was my load. I dropped the load to 4.0 grains and the same issue. Then I checked the crimp, I took a made bullet and pulled it, the sides are perfect, you can't even tell it was loaded so it's not the crimp messing up the plating. No idea what's causing the jacket to separate. Could it be anything to do with the pressure of the can? Any way for me to test this without the can to see if they are separating? Last, I took some factory FMJ ammo and shot 5 rounds and it didn't produce any flakes of jacket. So that tells me that the can isn't scraping the jacket. I even looked in the can and there's no baffle damage or streaking of copper in there. It doesn't seem to harm the can but it can't be good for it in the long run. Should I back down my load even more to see when it stops happening? 4.0grains seems like a pretty moderate load according to my books and the Hodgdon website. Any ideas on how to get this load to work? Should i just pony up the extra dough and shoot all FMJ jacketd bullets? Phone book? |
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They're probably just that soft. I almost cut the side off one when I tried to seat it in a case that was inadequately flared. This brings me to a question, is it acceptable to shoot lead bullets through a can? It's usually discouraged as the lead builds up. It's bad enough having to deal with the carbon but the lead is a pain. You can dip your can to get rid of it. That' why most 22LR cans are able to be disassembled. So if it's the plating just spinning off, you think that it happens with the can on or not? I can try to set up a phone book test but my range is sorta freaks about shooting at anything other than paper targets. Do you guys think it's a function of the rifling spinning the plating off or the heat of the load? If I reduce the load is there any chance to get the jackets to stay on? |
| I just found one that I recovered a few years ago. It came out of a Springfield 1911. The plating is all intact, unfortunately it too tarnished to get a clear pic. I will probably switch over to jacketed bullets on my next order like you said the price difference is negligible and they can run higher velocities. |
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They're probably just that soft. Bingo.... There are a few that will argue this point. They've cut Ranier plated in half and state it's thicker than you might think. For one: Brinnel hardness in lead used for jacketed bullets is higher than lead used with plated. For two: Cut into a jacketed Speer or Hornady and compare to plated Ranier. There is a difference in thickness. For three: plated isn't a thin coating of "jacketed" copper. Plated is a softer application of copper than jacketed copper is.. I'm a simpleton redneck with my approach to proving things. Take like plated bullet bullet and like jacketed. Set both on steel workbench or concrete. Hit them both with same force from hammer and see for your self. It's a less than scientific approach, if done fairly as analysis for your own conclusion it's accurate. |
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