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Posted: 12/10/2003 8:44:25 AM EDT
Link Posted: 12/10/2003 9:10:37 AM EDT
Nice work! Is that an 18" barrel? How about more details on the upper and barrel?[:D]
Link Posted: 12/10/2003 9:26:39 AM EDT
Link Posted: 12/10/2003 11:16:55 AM EDT
SWEET! Now if we could just get RRA to make those midlength 16" barrels in 1/7 twist, light under the handguards [:D]
Link Posted: 12/10/2003 12:01:27 PM EDT
[Last Edit: 12/10/2003 12:02:33 PM EDT by Hawkeye]
Originally Posted By Lumpy196: SWEET! Now if we could just get RRA to make those midlength 16" barrels in 1/7 twist, light under the handguards.[:D]
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Would be nice.
Link Posted: 12/10/2003 12:04:51 PM EDT
Link Posted: 12/10/2003 12:07:33 PM EDT
[Last Edit: 12/10/2003 12:08:01 PM EDT by Lumpy196]
77gr bullets.
Link Posted: 12/10/2003 12:09:03 PM EDT
Link Posted: 12/10/2003 12:15:23 PM EDT
Link Posted: 12/10/2003 12:16:50 PM EDT
[Last Edit: 12/10/2003 12:18:30 PM EDT by Lumpy196]
Its been hit and miss depending on the manufacturer and the conditions on whether it will stabilize. With 1/8 or faster its guaranteed. There have been several threads on it.
Link Posted: 12/10/2003 12:27:01 PM EDT
[Last Edit: 12/10/2003 12:29:59 PM EDT by bigbore]
Link Posted: 12/10/2003 12:32:33 PM EDT
Actually, it was KevinB and Brou discussing it in the GA Precision ammo thread and several other places. Then theres always the hope for eventually seeing the 100gr loads [;)] Its not a matter of it NOT working, its a matter of getting the full accuracy advantage out of the rounds.
Link Posted: 12/10/2003 12:40:37 PM EDT
Link Posted: 12/10/2003 12:48:32 PM EDT
[Last Edit: 12/10/2003 12:50:41 PM EDT by rlp2600]
I'm surprised the RRA SS 1/8 midlengths aren't more popular (maybe they are and no one talks about them).
Link Posted: 12/10/2003 12:59:30 PM EDT
[Last Edit: 12/10/2003 1:01:28 PM EDT by Artifex]
that chrome-lined mid-length barrel thing looks vaguely familiar...can't seem to put my finger on it... Looks nice with the SIR, tried any with a PRI handguard? I think we need to designate an acronym specifically for mid-length 16" carbines with modular or rail system forearms and magpul, crane or vltor stocks. SPR is taken, M4 is taken, but it's a mix of the two... SP-4? By the way, on that first pic, doesn't the ARMS #40 stick up your nostril when you get the proper eye-relief on that Ta-31?..wait a minute, that's a TA-11 isn't it? Or do you index by clamping the charging handle in your teeth? [ROFL]
Link Posted: 12/10/2003 1:03:26 PM EDT
Link Posted: 12/10/2003 2:28:26 PM EDT
[Last Edit: 12/10/2003 2:28:47 PM EDT by knightone]
Originally Posted By Lumpy196: SWEET! Now if we could just get RRA to make those midlength 16" barrels in 1/7 twist, light under the handguards [:D]
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Don't forget 4150 steel, A midlength 16" 4150 chrome lined barrel would be the bomb. An URX midlength that incorporated the fixed front sight on a midlength barrel would most definitely be my dream come true. Coldblue if you're listening, please at least do a limited run on something like that. Pretty please?
Link Posted: 12/10/2003 2:30:21 PM EDT
Originally Posted By bigbore: For a 100gr. you'd need an LONG throat, a compressed charge, and it still may not make the velocity needed..
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Lumpy was referring to the 100gr. developed by the military for use on existing barrels. The long throuat wouldn't be needed as these are desiged to be fired out of the standard M4 barrel.
Link Posted: 12/10/2003 2:32:06 PM EDT
Originally Posted By Artifex: I think we need to designate an acronym specifically for mid-length 16" carbines with modular or rail system forearms and magpul, crane or vltor stocks. SPR is taken, M4 is taken, but it's a mix of the two... SP-4?
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Could this configuration be covered under the term SPRbine?
Link Posted: 12/10/2003 2:39:33 PM EDT
Link Posted: 12/17/2003 12:50:28 PM EDT
Originally Posted By bigbore: I cant imagine a 100gr. That would be nice. Lets see, you need at least 1:6.5 to stabilize a 90gr.. I have 1:6.5 pac-nor coming that I'm going to use for LR this season. I can hardly wait until June when I get my first chance at 1000. For a 100gr. you'd need an LONG throat, a compressed charge, and it still may not make the velocity needed..
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100 grain mag length bullets can and have been done. All they need is a 1 in 7 as they are not as long as a JLK VLD 90 grain. They fragment extremely well. The charge is compressed but can be compacted using different techniques. The bullets velocity can be enhanced significantly with moly coating, because the bearing surface is so long. It seems that the ammunition forum people pissed off some folks from Crane when they did their independant 100 grain tests. It seems the ammunition forum people know a little on how a cartridge goes "bang," to equal the performance of the Crane loading. Too bad Crane hasn't been happy with someone doing independant test proceedings, as it would make a good cooperative. You can check out the gelatin tests in the ammunition forum.
Link Posted: 12/17/2003 1:13:19 PM EDT
How about MiLBINE?
Link Posted: 12/17/2003 2:07:43 PM EDT
Actually the 14.5 and 16" Carbines in 1:9 do not do very well with the 77gr bullets. I cant keep them inside 3-4MOA where as the 1:7 Colt RO921 I have will keep them inside 1". As Naked80 pointed out 1:7 does fine with the 100gr OTM
Link Posted: 12/17/2003 2:26:16 PM EDT
Originally Posted By Naked80:
Originally Posted By bigbore: I cant imagine a 100gr. That would be nice. Lets see, you need at least 1:6.5 to stabilize a 90gr.. I have 1:6.5 pac-nor coming that I'm going to use for LR this season. I can hardly wait until June when I get my first chance at 1000. For a 100gr. you'd need an LONG throat, a compressed charge, and it still may not make the velocity needed..
View Quote
100 grain mag length bullets can and have been done. All they need is a 1 in 7 as they are not as long as a JLK VLD 90 grain. They fragment extremely well. The charge is compressed but can be compacted using different techniques. The bullets velocity can be enhanced significantly with moly coating, because the bearing surface is so long. It seems that the ammunition forum people pissed off some folks from Crane when they did their independant 100 grain tests. It seems the ammunition forum people know a little on how a cartridge goes "bang," to equal the performance of the Crane loading. Too bad Crane hasn't been happy with someone doing independant test proceedings, as it would make a good cooperative. You can check out the gelatin tests in the ammunition forum.
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do you have a thread link to that topic? I'm curious about the gelatin testing. thanks!
Link Posted: 12/17/2003 2:34:24 PM EDT
[url]http://www.ar15.com/forums/topic.html?b=3&f=16&t=145122[/url]
Link Posted: 12/17/2003 2:39:06 PM EDT
thanks Kevin!
Link Posted: 12/17/2003 4:47:57 PM EDT
Either way, I have some 1:7 SS midlength barrels (turned down under the handguards) on the way from White Oak Precision if that would interest you.
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Can you provide some more info on these? 16" I assume? Fully chrome lined (Bore and Chamber)? 4140 or 4150? What's on the end (Fake FS\comp\target crown)? Available as barrel only or part of upper? If upper, Cast or Forged front ST? Cost? Expected arrival? Any more info you can provide would be great! Thanks
Link Posted: 12/17/2003 4:57:54 PM EDT
[Last Edit: 12/18/2003 3:43:25 AM EDT by bigbore]
Link Posted: 12/17/2003 8:17:19 PM EDT
Unlike other vendors who assemble the same old pieces and call them "custom", I can give you exactly what you want, and what no one else has
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I have no idea why you'd post this. MSTN has been doing custom stuff here for a long time, maybe you did nto mean your comments as a dig but it looked like it to me. Wes has sat down both at SHOT and on the phone and trouble shot and given advice even if he was not in a position to supply me with what I wanted. -Kevin
Link Posted: 12/17/2003 9:25:16 PM EDT
DITTO!!!!!!!!!!!!!!!!!!!!!! Jack
Link Posted: 12/18/2003 3:26:48 AM EDT
Link Posted: 12/18/2003 3:42:49 AM EDT
[Last Edit: 12/18/2003 3:44:51 AM EDT by bigbore]
Link Posted: 12/18/2003 9:12:30 AM EDT
Steve, Fair enough answer. While I guess not technically custom Wes helped design the PRI Extra High Aimpoint mount... Furthermore has has had runs of custom AR's in various flavour that he has spotlighted to help individuals make choices. If it was not your intent to 'dis' the others then you have my appologies. -Kevin
Link Posted: 12/18/2003 9:25:22 AM EDT
Link Posted: 12/18/2003 10:15:11 AM EDT
[Last Edit: 12/18/2003 10:17:46 AM EDT by Naked80]
Originally Posted By bigbore: no problemo There are vendors here who contribute NOTHING more than bumping up their own posts in the EE. WES/MSTN is one of the few I admire for their continual useful contributions at ARFcom. MSTN’s time/effort is well appreciated by many, including myself.
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Amen to that. The White Oak Precision stuff is excellent BTW.
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