|
Post by GLSHOOTER on Mar 31, 2018 12:33:43 GMT -8
Is anyone making dies for this round yet? CH4D made a run but they sold out. I've been waiting for almost a year for one...None in sight. That being said I have a potential source I want to look at next week. If I find one I will post up. Greg
|
|
|
Post by 308bob on Nov 11, 2018 19:16:32 GMT -8
Hello
I just recently ordered a 243 lbc barrel from you, and found this older thread. Just a few questions... I am sure I overlooked these answers but maybe you can point me to the answers or help me find them.
1 can I use 6mmAR load data as it says it is a 6.5 Grendel necked down to 6mm?
2 looking to load medium to heavy bullets 87- 105 as I am going to use this mainly for coyotes here in Oregon. Does the heavier bullets go to far down the neck?
3 I see the reference to 6mm seating die by Hornady. is that a generic seating die or would a 6mm Remington seating die work?
4 what powders excel in the 87 -105 bullets?
5 has anyone tried the 103 Hornady eld x loaded to ar mag length or is it too long
thanks in advance
Bob..
|
|
|
Post by GLSHOOTER on Nov 12, 2018 7:47:53 GMT -8
Hello I just recently ordered a 243 lbc barrel from you, and found this older thread. Just a few questions... I am sure I overlooked these answers but maybe you can point me to the answers or help me find them. 1 can I use 6mmAR load data as it says it is a 6.5 Grendel necked down to 6mm? 2 looking to load medium to heavy bullets 87- 105 as I am going to use this mainly for coyotes here in Oregon. Does the heavier bullets go to far down the neck? 3 I see the reference to 6mm seating die by Hornady. is that a generic seating die or would a 6mm Remington seating die work? 4 what powders excel in the 87 -105 bullets? 5 has anyone tried the 103 Hornady eld x loaded to ar mag length or is it too long thanks in advance Bob.. Case capacity of the 6mmAR and the LBC are virtually identical. Load data is interchangeable. You can shoot 105's but the 95 is much more usable for your needs. If I were shooting it I would go with the 87 Hornady bullet. Excellent accuracy, god BC and the speeds are higher. We use the Hornady generic dies vs. cartridge specific. A true 6 MM Remington may be too tall to get it done. I do add micrometer stems to all mine for ease of adjustment DO NOT CRIMP!! 8208 and RL15 work well for the heavies Never shot the 1043's and using ASC mag length is 3.314 nominal Do not hobble yourself with 2.260 magazines. You can also window a mag and get out to about 2.40 Greg 8208 and RL15 work well for the heavies.
|
|
|
Post by 308bob on Nov 17, 2018 12:51:20 GMT -8
does it matter which asc mag? to get that length?
what is a window mag?
thank you for the info … looking forward to getting the barrel and on the gun for some testing
|
|
|
Post by GLSHOOTER on Nov 17, 2018 13:20:23 GMT -8
does it matter which asc mag? to get that length? what is a window mag? thank you for the info … looking forward to getting the barrel and on the gun for some testing I like 5 and 10 rounders. All the Grendel magazines are the same internal load length . They have tow sizes of 23's though. A windowed magazine has the front cut out to allow lading longer. It can hold 5-8 rounds depending on the cartridge diameter. Greg
|
|
|
Post by jeff76 on Mar 11, 2019 5:21:38 GMT -8
Having issues with rounds not fully chambering, difficult extraction, and dents in case shoulders when chambering.
I’ve screwed my Redding FL Grendel die down to over cam and have filed the shell holder to get 0.003” shoulder bump and that has relieved the difficult extraction issue but the bolt won’t lock into full battery unless I release it from all the way back and ge forward assisthas to be beaten if it doesn’t fully close. The gun fires and cycles fine but it feels like the cases aren’t sized enough, but they are.
The other issue is dents in the shoulder on chambering, not after firing and extraction. If I take a sized piece of brass drop it in the chamber by hand and close the bolt and slowly extract it there will be a dent in the shoulder. This goes away after firing so it can’t be an obstruction in the chamber.
What is causing these issues?
|
|
|
Post by GLSHOOTER on Mar 11, 2019 6:54:36 GMT -8
Having issues with rounds not fully chambering, difficult extraction, and dents in case shoulders when chambering. I’ve screwed my Redding FL Grendel die down to over cam and have filed the shell holder to get 0.003” shoulder bump and that has relieved the difficult extraction issue but the bolt won’t lock into full battery unless I release it from all the way back and ge forward assisthas to be beaten if it doesn’t fully close. The gun fires and cycles fine but it feels like the cases aren’t sized enough, but they are. The other issue is dents in the shoulder on chambering, not after firing and extraction. If I take a sized piece of brass drop it in the chamber by hand and close the bolt and slowly extract it there will be a dent in the shoulder. This goes away after firing so it can’t be an obstruction in the chamber. What is causing these issues? Welcome to the board. First of all is this a new barrel? How many times has the brass been fired? Lets try bumping back about 0.005. 0.003 usually is good but sometime they are on that ragged edge. Are you out of the lands with the bullet? How are you determining this as not all chambers and bullets are equal? Picking a random length just doesn't work in a non-SAAMI chamber, or anyone of the others for that matter. You can go in and polish the lugs in the extension and this may help on the dents. It may well be that as you are slowly extracting the case the dent is being put in place as the case is rubbing longer on the lugs. Extraction post firing is not going to be quite the same and as the fired case shows no issues that would lead me to this conclusion. Since you are dropping the case in the chamber that would eliminate getting rubbed/dented going in. Here's a test. Pul the upper, drop the case in the chamber and sling the BCG home by hand to seat fully. Now extract the case smartly with the charge handle. They should come out like greased owl dookie. Do three or four. Any dents? If the cases do not extract easily that is also another indication of not being sized enough. Just a starting point. BTW cut that shell holder down more. Cam-over is a myth and all it does is stres your press. You can only size so much once that shell holder hits the dei. The die should barely touch the shell holder when the press at top extension. Pushing it hard just results in bent frames or damage over time. I routinely cut my holders around 0.010 or so. Greg
|
|
|
Post by jeff76 on Mar 11, 2019 8:39:10 GMT -8
Barrel is new from ar15performace.com. Brass is new hornady 6.5G necked down.
I haven’t measured the max seating depth but I’m not seeing bullet set back and the issues remains with no bullet in the case.
I’ve polished/lapped the lugs, polished the bolt face, polished the chamber, smoothed out sharp edges in the barrel extension and sanded the feed lips on the magazine. Didn’t seem to make any difference.
I’ve put a sized case in by hand and released the bolt and extracted slowly. Everting feels the same as when a bullet is in the case. You can’t close the bolt on it slowly, it has the be released from the bolt catch. The only thing that helped the extraction was filing the shell holder down. Sounds like I need to size the case more.
I ordered a custom set of dies cut with the same reamer as the barrel so that may solve this problem but the shoulder dents still confuse me. I’ve seen others mention brass needs to be trimmed or hydraulic pressure from lube/oil is causing dents but I don’t think that’s it.
|
|
|
Post by GLSHOOTER on Mar 11, 2019 9:29:06 GMT -8
Barrel is new from ar15performace.com. Brass is new hornady 6.5G necked down. I haven’t measured the max seating depth but I’m not seeing bullet set back and the issues remains with no bullet in the case. I’ve polished/lapped the lugs, polished the bolt face, polished the chamber, smoothed out sharp edges in the barrel extension and sanded the feed lips on the magazine. Didn’t seem to make any difference. I’ve put a sized case in by hand and released the bolt and extracted slowly. Everting feels the same as when a bullet is in the case. You can’t close the bolt on it slowly, it has the be released from the bolt catch. The only thing that helped the extraction was filing the shell holder down. Sounds like I need to size the case more. I ordered a custom set of dies cut with the same reamer as the barrel so that may solve this problem but the shoulder dents still confuse me. I’ve seen others mention brass needs to be trimmed or hydraulic pressure from lube/oil is causing dents but I don’t think that’s it. Perhaps that version may well be subtly different than the BHW type. I'd go to the 68 FORUMS ARP area and post this up. I won't even presume to tell you what to do on an ARP tube. You have a definite sizing shoulder issue if you are forced to use the buffer spring to seat a case. As to the dents perhaps their resident experts can assist you on that or this whole ball of wax if sizing more doesn't fix it. Greg
|
|
|
Post by jeff76 on Mar 12, 2019 3:08:25 GMT -8
I took a sharpie to the neck/shoulder area of a sized case and placed it in the chamber by hand and released the bolt. I cant upload a picture but there is a clear ring at the base of the neck where the case is getting stuck in the neck of the chamber - exactly like a false shoulder when fire forming AI brass using the cream of wheat method.
I’ve filed down the shell holder 0.025” or more and can’t get the shoulder pushed down anymore than 0.002-3” and the bushing die seems to be sizing very near 100% of the neck so idk where this problem is coming from but I’ve ordered dies cut with the same reamer as the barrel so maybe the Frankenstein Redding 6.5G bushing die is the problem.
Also, I noticed I was getting the same shoulder dents on the case while sizing and figured out it was due to excessive case lube even tho Idt it was excessive. At least it’s not the gun.
I hope this helps someone that might be having the same issue.
|
|
|
Post by GLSHOOTER on Mar 12, 2019 6:16:58 GMT -8
Time to call ARP directly and sleuth this one out.
Greg
|
|
traav
New Member
Posts: 5
|
Post by traav on Apr 30, 2019 18:51:32 GMT -8
I just received my 243LBC barrel and I'm in the process of resizing lapua 6.5 Grendel with a redding type s full length resizing die and a 269 bushing. When I resized the neck of the case I noticed the end of the case neck was flaired out and the bottom 40thousands of the neck are not getting resized just checking to see if that's normal? View AttachmentAfter resizing the end of case .268 the rest of the case neck measures .260 and the bottom 40thousands of neck are not getting resized at all any advise on if this is normal or if I'm going something wrong would be appreciated thanks. I’m having this same problem. Anyone have the answer ?
|
|
|
Post by GLSHOOTER on Apr 30, 2019 19:01:29 GMT -8
I just received my 243LBC barrel and I'm in the process of resizing lapua 6.5 Grendel with a redding type s full length resizing die and a 269 bushing. When I resized the neck of the case I noticed the end of the case neck was flaired out and the bottom 40thousands of the neck are not getting resized just checking to see if that's normal? View AttachmentAfter resizing the end of case .268 the rest of the case neck measures .260 and the bottom 40thousands of neck are not getting resized at all any advise on if this is normal or if I'm going something wrong would be appreciated thanks. I’m having this same problem. Anyone have the answer ? The flare is only seen on the first loading. The bushings do not size all the way to the shoulder but 0.040 is excessive and floating the bushing less will help. As to the 0.260 with a 269 I would question that. BTW CH4D has the standard 243 LBC dies in stock. They sent me one three weeks ago. Greg Have you seated a bullet?
|
|
traav
New Member
Posts: 5
|
Post by traav on May 1, 2019 2:49:07 GMT -8
The flare I’m talking about is at the top. The case mouth, not the bottom at the neck shoulder junction. I understand that after it’s fire formed this may not be a issue but I would like to produce good ammo the first loading. Most of this will only be fired once as this is my night coyote hunting rifle. After dark most are lost.
|
|
|
Post by GLSHOOTER on May 1, 2019 6:29:41 GMT -8
We've seen the flare at the top off and on. No consistent appearance from case to case. We suspect it has something to do with the level of annealing from the manufacturer.
I've shot groups in the 3's with the fresh stuff. Ritch has killed a bunch of coyotes with his. I don't think it will cause you any issues on target.
You might call Redding and ask them. We've never got any real explanation. Perhaps you'll have better luck.
Greg
|
|