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Post by GLSHOOTER on Jan 8, 2012 17:47:56 GMT -8
748 , H335, AA2015, AA2230, H4895 and RL15 just for starters.
I have not used X-terminator in mine but I have used it in 223 with good results. I see no reason why it wouldn't run.
As to the jams I would bump the charge up a tad as you have a bit of room left. I would also suggest not pushing the gun on the bench with the magazine or hanging on to the mag as I shot. This will sometimes induce what you are seeing. One other thing that sometimes helps is the addition or removal of one or two tuns of the magazine release spring. If There are times when the improper tension will allow the magazine to be out of proper height in the mag well.
Did you try to shoot one in the mag and did it lock back on single shot? That is usually the first thing to try if you suspect short stroke.
Alternatively an adjustable gas block may well be in order down the road. I'm not sure what the port size should be. Perhaps Andy here at BHW could get you a number and you could check yours against that.
Greg
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Post by The Wolverine on Jan 9, 2012 7:22:11 GMT -8
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Post by HuntTXhogs on Jan 9, 2012 7:56:04 GMT -8
Did you try to shoot one in the mag and did it lock back on single shot? That is usually the first thing to try if you suspect short stroke. Greg When shooting from a benchrest last week the gun exhibited the same problems. Making the vid I see the problem in choosing this shooting position (resting on mag and holding at mag) but I needed an area to hold the camera, anyways So at the range last week I was shooting single shot about 40 rounds and it never locked the bolt open. As to powder in the cases, with the 62 gr Barnes I don't have any room left for more powder and don't want to compress the load. With the 80gr I could probably go with another grain but I am not confident that will do it. Which of all the powders mentioned is going to blow that bolt back, bar none no questions? Not asking for load instruction just asking, in your experience, what powder packs the optimal punch in this caliber. BB
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Post by Deleted on Jan 9, 2012 8:03:57 GMT -8
Volverine, Thanks for sharing that lod info.
Bennybone, The way I see that brass come out you need a little more pressure. The angle is right but it should be coming out about 40-50 degrees up in the air.
This is what you want to do in this order:
A) Try some popular and simple loads for example a 75gr vmax with. 26gr of W748 with any primer. or 25gr of Varget with any primer. I use LC NATO brass and promag 5round mags that give a tad extra COAL. These move any of the 6x45 uppers I have.
B) If the above doesn't work look for any leaks. might not be obvious and this is not frequent bu this can be a reason. Also make sure the gas block is properly aligned not just canted but it is not running over the gas port. Check also buffer spring make sure is the proper tension and length. It is not frequent but I have seen some out of spec.
C) If the above doesn't work it is time to try a different gas block. get a regulated one something that you might need later.
D) Last resource is some minor 'surgery'. Just open up the barrel port a tad. This can be done in the field with simple tools but you need to be very careful. If not sure then ask someone with experience. I hardly see this as a necessity, only when tuning systems for both subsonic and supersonic work.
I hope this helps.
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Post by Deleted on Jan 9, 2012 8:07:39 GMT -8
Regarding the Redding carbide buttons...
A friend here locally asked me if lube was still required and that this was his understanding. I told him no! No need for any type of lube. With clean cases (just washed that is what I do) soft or hard brass goes in and out w/o any stickiness or issues. Even easier than the .223 rem button itself. I love the 6x45!.
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Post by GLSHOOTER on Jan 9, 2012 9:35:11 GMT -8
Did you try to shoot one in the mag and did it lock back on single shot? That is usually the first thing to try if you suspect short stroke. Greg When shooting from a benchrest last week the gun exhibited the same problems. Making the vid I see the problem in choosing this shooting position (resting on mag and holding at mag) but I needed an area to hold the camera, anyways So at the range last week I was shooting single shot about 40 rounds and it never locked the bolt open. As to powder in the cases, with the 62 gr Barnes I don't have any room left for more powder and don't want to compress the load. With the 80gr I could probably go with another grain but I am not confident that will do it. Which of all the powders mentioned is going to blow that bolt back, bar none no questions? Not asking for load instruction just asking, in your experience, what powder packs the optimal punch in this caliber. BB In reality no powder is a guarantee to run it all the time. Remember reliability is super but you really need to look at the accuracy issue too. Not all workable powders will shoot well. That being said I have never had an issue with 748 in all my bullet weights. As to compressing the load I can assure you that when you start stepping up to above 70 grains with many great powders that compression is a fact of life and is not that big an issue. When you shove an 87 grain Hornady match bullet in there it goes way past the bottom of the neck and I know that it will be compressing the powder. Accuracy is good and actually with many powders you can't get enough in the case to cause a pressure issue and the compression of the load lets you use those powders and get some pretty god performance. One consideration is if you are using a progressive like the Dillon 650 that the powder chosen is relatively dense and will let you load below the neck charges. When you get up in that area you start risking the spilling of the powder on the stage as it rotates. Keep us posted and if it doesn't lock back that bolt it is a light charge or an undersized gas port 95% of the times. Greg
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Post by HuntTXhogs on Jan 9, 2012 10:22:39 GMT -8
Volverine, Bennybone, I use LC NATO brass and promag 5round mags that give a tad extra COAL. These move any of the 6x45 uppers I have. I hope this helps. I will look up sourcing one, from your experience what COAL are you loading to with this mag? What has been the affect on accuracy? Thx, BB
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Post by Deleted on Jan 9, 2012 21:38:44 GMT -8
This is one of the promags. I have others that give a tad more w/o modifications... These are a couple of 6x45 dummies that I use to setup the seating dies.... 90gr SGK.. 87gr Hornady BTHP.... I hope this helps.
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Post by HuntTXhogs on Jan 11, 2012 18:10:34 GMT -8
1shot -
Thanks for the photos, what part number is the magazine you are using?
I went to Cheaper Than Dirt today and they don't carry ProMag and the guy had some not so nice things to say about them.....
I am willing to try on your recommendation however.
BB
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Post by Deleted on Jan 11, 2012 18:15:50 GMT -8
The promags are fine. They can use a nice follower but most work just fine as is. Only steel mags give the most coal. Let me check if I can find some cases and numbers. I am not sure.
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Post by Deleted on Jan 13, 2012 6:19:56 GMT -8
It is funny, some promag magazines give a tad more than the pictured above and some give a tad less. What I do is to put them in the press using a mold and get the most of them w/o interfering with the smooth operation... The one left is a 20rd GI adventure that gives also a generous 2.305 w/o touching. the right is a 6.8 Steel SPC that is also a long seater (with 6.5BR norma pictured) Here the one in the left is the Promag 5rd. The one in the middle is the GI magazine but with the VLD rounds to max coal for the VLD magazines so obviously will not work double stack. Here is the floorplate for your reference... I hope this helps. I can picture more but some do not even have a marking. Some I got from Delton are amazing but no markings on them. I don't think they have them anymore as they do not fabricate any mags and simply sell what they can get.
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Post by HuntTXhogs on Jan 19, 2012 18:27:49 GMT -8
Update:
Problem isolated! I swapped the bolt and carrier from my brother's AR15 into my 6x45 gun and viola ! It cycled 50 rounds flawlessly.
I put the bolt and carrier group from my 6x45 into his AR15 and it jammed on every shot just as it was in my gun.
I can percieve no visible difference between the two bolts and it my estimation they are both complete (cams, pins, extractor parts ect...)
Any suggestions for a replacement (working) BCG or are they all the same as I was under the mis-conception of the whole time.
BB
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Post by GLSHOOTER on Jan 19, 2012 21:05:43 GMT -8
Update: Problem isolated! I swapped the bolt and carrier from my brother's AR15 into my 6x45 gun and viola ! It cycled 50 rounds flawlessly. I put the bolt and carrier group from my 6x45 into his AR15 and it jammed on every shot just as it was in my gun. I can percieve no visible difference between the two bolts and it my estimation they are both complete (cams, pins, extractor parts ect...) Any suggestions for a replacement (working) BCG or are they all the same as I was under the mis-conception of the whole time. BB Make sure the CARRIER KEY is tight against the BC and the bolts are tight. Sounds like you might be loosing your gas there. Greg
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Post by Deleted on Jan 19, 2012 21:54:15 GMT -8
I agree. Check the key first and also check the bolt gas rings. Make sure the rings openings are spread evenly and not aligned. Depending on how tight the cam is they might be letting go too much gas too. with a pin or the point of the firing pin just make one ring opening lets imagine 12 o'clock, another at 4 and another at 8. makes sense?
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Post by The Wolverine on Jan 20, 2012 0:05:11 GMT -8
Test the gas rings, extend the bolt, then stand bcg on a flat surface bolt face down, it should stand there, and not collapse, it might just need a good cleaning, and a little oil. Best carbon scraper I have used www.botachtactical.com/m4ct.html, it scrapes inside carrier, and bolt tail. Swap just the bolt to isolate further. Look for wear on your BCG, and inside receiver, I have seen the base of the gas key rubbing inside receiver, carrier rubbing inside receiver, bolt lugs not machined correctly rubbing extension. Paul
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