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 JohnC76 
Member
Joined: Jun 2012  TN, USA
 Posts: 15 Feedback: 100% (1) |
Posted: 7/12/2012 12:13:18 PM
[Last Edit: 7/12/2012 12:13:49 PM by JohnC76]
THE IMAGE ABOVE IS A PAID ADVERTISEMENT Do they introduce more wear in the barrel? Seeing as they're solid brass, would they be as strong as Armor Piercing in going through steel or armor? Just curious. 
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Posted: 7/12/2012 1:36:43 PM
Originally Posted By JohnC76:
Is there any accuracy advantage to using turned brass bullets? Do they introduce more wear in the barrel? Seeing as they're solid brass, would they be as strong as Armor Piercing in going through steel or armor? Just curious. There may be a very very slight (I would go so far as to say negligible) concentricity advantage, but I don't know if it will have any significant effect. Generally the turned brass/copper bullet manufacturers claim there is less barrel wear. There is often less bearing surface on the driving bands than on the continuous bearing surface of normal bullets, creating lower chamber pressures. They are better than lead core for penetration but not as good as hardened steel or tungsten core. |
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Posted: 7/12/2012 2:32:36 PM
Originally Posted By LedZeppelin:
Originally Posted By JohnC76:
Is there any accuracy advantage to using turned brass bullets? Do they introduce more wear in the barrel? Seeing as they're solid brass, would they be as strong as Armor Piercing in going through steel or armor? Just curious. There may be a very very slight (I would go so far as to say negligible) concentricity advantage, but I don't know if it will have any significant effect. Generally the turned brass/copper bullet manufacturers claim there is less barrel wear. There is often less bearing surface on the driving bands than on the continuous bearing surface of normal bullets, creating lower chamber pressures. They are better than lead core for penetration but not as good as hardened steel or tungsten core. Thanks for the info! 
Do you reload 50 BMG? In the future, I want to reload. I have my eye and heart set on a Dillan setup. http://www.dillonprecision.com/content/p/9/pid/25686/catid/1/Dillon_BFR_50BMG_Reloading_Machine 
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Posted: 7/12/2012 5:22:15 PM
I do. I use the LEE kit and it has worked well for me. I can't comment on the Dillon.
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50_Shooter
Member
Moderator
Joined: Jul 2002 CA, USA
Posts: 2161 Feedback: 100% (4) Link To This Post |
Posted: 7/12/2012 6:29:57 PM
As for armor piercing, brass will never match hardened steel, tungsten or depleted uranium (no there aren't 50 BMG DU rounds) when it comes to punching thru steel/armor. Yes brass wil punch thru mild steel plates to a certain thickness but that's about all.
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Posted: 7/12/2012 7:50:19 PM
Originally Posted By JohnC76:
Is there any accuracy advantage to using turned brass bullets? Do they introduce more wear in the barrel? Seeing as they're solid brass, would they be as strong as Armor Piercing in going through steel or armor? Just curious. As far as accuracy advantage, I know that at 1000 yard matches the guys shooting Amax win more high score awards than small group awards. The solid brass projectiles hold most of the world records for small group. People have shot some very small groups with Amax projectiles at 1000 yards, but the turned solid brass projectiles do it more consistently and smaller. |
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Posted: 7/12/2012 9:17:05 PM
Originally Posted By competitor:
Originally Posted By JohnC76:
Is there any accuracy advantage to using turned brass bullets? Do they introduce more wear in the barrel? Seeing as they're solid brass, would they be as strong as Armor Piercing in going through steel or armor? Just curious. As far as accuracy advantage, I know that at 1000 yard matches the guys shooting Amax win more high score awards than small group awards. The solid brass projectiles hold most of the world records for small group. People have shot some very small groups with Amax projectiles at 1000 yards, but the turned solid brass projectiles do it more consistently and smaller. Thanks for the info! How do the ArmaLite AR50-A1 rifles do with those Amax and brass loads - if you know? That's what I have is a new AR50-A1 B.
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50_Shooter
Member
Moderator
Joined: Jul 2002 CA, USA
Posts: 2162 Feedback: 100% (4) Link To This Post |
Posted: 7/12/2012 11:40:29 PM
Being that I own an AR-50, AMAX work well due to the long throat. Not sure if they changed it much on the newer models, I think they did on the National Match versions. DO NOT use borerider type bullets as you'll waste your money, you need a BR type of chamber for them to work properly.
Try the Barnes 750 gr. LRS non BR type or check out Lehigh's site for a bullet in the same weight, AAA ammo also makes some non BR types also if I remember correctly. Be sure to seat them deep enough in the case or it's hard to keep them centered and if they start out crooked they'll never shoot straight. I try to keep them between 5.65-5.71" and have had good results. A good powder charge for these is 220 grs of H50BMG, 5010 or VV24N29. |
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Posted: 7/13/2012 3:36:45 AM
I personally know quite a few people that do or have used bore rider projectiles in a standard throat chamber including myself, with good results. You will find that they won't shoot worth a hoot untill you have about 400 rounds througth the barrel and then they start shooting better. One guy with an AR50 shot Amax at matches when I was the FCSA Match director at Alliance, he shot pretty well with it and after hundreds of rounds he switched to the AAA 768gr bore rider and shot better groups than the Amax ever shot in his AR50. If you shoot bore riders out of a brand new standard throat barrel you will get groups that look like shotgun patterns. I think that is why some people say you can't shoot them unless you have a bore rider throat, they tried them or know some one that did with a fairly new rifle/barrel.
Ed |
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Posted: 7/13/2012 11:41:45 AM
Also, to add to all the good stuff above, and to confuse matters a little,
there are semi-bore riders out there too... I've seen sequential serial number gunss that liked different loads, so my point of view it to try things that other folks say won't work for them to be sure... It seems in life, If you do exactly what everyone does, you'll always be mid-pack. (sometimes that's good enough!) |
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Posted: 7/13/2012 12:19:36 PM
Originally Posted By PugglePod9000:
Also, to add to all the good stuff above, and to confuse matters a little, there are semi-bore riders out there too... I've seen sequential serial number gunss that liked different loads, so my point of view it to try things that other folks say won't work for them to be sure... It seems in life, If you do exactly what everyone does, you'll always be mid-pack. (sometimes that's good enough!) I shot thousands of rounds of AAA 705gr semi-bore riders before I switched to a true bore rider. They shot very well out of my standard throat rifle, even with a new barrel. |
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Posted: 7/13/2012 11:01:08 PM
Thanks for the awesome info, guys!
I'm totally new to the 50 BMG and the AR50 is my first 50 cal rifle. I just got it brand new a few weeks ago.
It'll take a little time and money to get setup with this thing (reloading wise), but I think it'll a lot of fun to reload and experiment with long range so it'll be worth it! |
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50_Shooter
Member
Moderator
Joined: Jul 2002 CA, USA
Posts: 2164 Feedback: 100% (4) Link To This Post |
Posted: 7/14/2012 12:37:21 AM
Once you shoot it you'll have to take a sanding disk to get this
look off of your face. Don't forget to post pics or else it didn't happen. |
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50_Shooter
Member
Moderator
Joined: Jul 2002 CA, USA
Posts: 2167 Feedback: 100% (4) Link To This Post |
Posted: 7/14/2012 2:12:38 AM
Hey Ed,
Those BR rounds probably worked better due to the wear on the barrel. Probably stay that way if the owner keeps track of the wear and has the driving band changed as the barrel wears more and more. What do you think of Pac-Nor barrels? I'm leaning that way as a replacement when my AR-50 needs a new one. Will probably go with a 36" barrel even though it will stick out of the soft case.  |
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Posted: 7/14/2012 12:05:32 PM
Originally Posted By 50_Shooter:
Hey Ed, Those BR rounds probably worked better due to the wear on the barrel. Probably stay that way if the owner keeps track of the wear and has the driving band changed as the barrel wears more and more. What do you think of Pac-Nor barrels? I'm leaning that way as a replacement when my AR-50 needs a new one. Will probably go with a 36" barrel even though it will stick out of the soft case. How fast do these AR50 barrels wear out? |
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Posted: 7/14/2012 1:24:43 PM
Originally Posted By 50_Shooter:
Hey Ed, Those BR rounds probably worked better due to the wear on the barrel. Probably stay that way if the owner keeps track of the wear and has the driving band changed as the barrel wears more and more. What do you think of Pac-Nor barrels? I'm leaning that way as a replacement when my AR-50 needs a new one. Will probably go with a 36" barrel even though it will stick out of the soft case. That's right, after several hundred rounds the throat gets opened up a bit from the hot gasses and then the B R projectiles start to shoot much better. I have a Pac-Nor barrel on one of my .50's and it shoots well, but they seem to wear out a little faster than the Loathar Walther barrels do. |
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Posted: 7/14/2012 1:28:59 PM
Originally Posted By JohnC76:
Originally Posted By 50_Shooter:
Hey Ed, Those BR rounds probably worked better due to the wear on the barrel. Probably stay that way if the owner keeps track of the wear and has the driving band changed as the barrel wears more and more. What do you think of Pac-Nor barrels? I'm leaning that way as a replacement when my AR-50 needs a new one. Will probably go with a 36" barrel even though it will stick out of the soft case. How fast do these AR50 barrels wear out? I know some one that just changed out his 1st barrel on an AR-50 and it had just over 4000 rounds throught it when changed and was starting to shoot bigger groups than usual. He had it rebarreled with a barrel with a shorter jump to the rifling and the rifle shot a 5 inch group at a 1000 yard match this year. |
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imtheflash
Member
Team Member
Joined: Feb 2007 CT, USA
Posts: 4165 Feedback: 100% (1) Link To This Post |
Posted: 7/15/2012 2:47:35 PM
Someone shot a 3.875" group at the Williamsport, PA match last month with an AR-50 that I know has over 3,000 rounds through it.
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Posted: 7/29/2012 7:25:37 PM
"competitor" this is very informative and very interesting. Thank you for your knowledge and sharing it.
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