Sisco Posted July 18, 2014 Report Share Posted July 18, 2014 (edited) At the end of the day today at the range, I had five rounds left. Three were in Lake City M118 brass, and two were in Winchester M80 brass. All were loaded with Winchester primers, RE15 41 gr., and 175 Sierra Match Kings. The three upper left are the Lake City, the two lower right are the Winchester M80. Mix and matching brass manufacturers can affect your groups. 100 yards off a bipod. AR10T carbine, 16 in barrel. Edited July 18, 2014 by Sisco Quote Link to comment Share on other sites More sharing options...
george_995 Posted July 18, 2014 Report Share Posted July 18, 2014 Nice groups though. Pretty crazy how little quirks work as such. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted July 18, 2014 Report Share Posted July 18, 2014 Nice shooting brother. Quote Link to comment Share on other sites More sharing options...
Sisco Posted July 18, 2014 Author Report Share Posted July 18, 2014 Thanks guys. Get out to 500 yards though, and that one inch gap becomes 5-7 inches. Got to get that down a bit. Quote Link to comment Share on other sites More sharing options...
Dane Armory Posted July 18, 2014 Report Share Posted July 18, 2014 Its the little things that make a big difference. Attention to detail. I try to load mags with the same brass after a reloading session. Quote Link to comment Share on other sites More sharing options...
Tripledeuce Posted July 19, 2014 Report Share Posted July 19, 2014 Each of the compounts are important, both indivualy and together. I'v seen bulletts , the same bullets, from different lots, shoot to different points of impacts,and different group sizes. Mixed lots of brass cam make for much larger groups. Same with different lots of powder. Even primers make a difference! many years ago, I built a 218 improved bee on a small Martini action. only brass I could get was primed remington. Best load I could work up would shoot inch and a half.used remington primers, cause thats what the brass came with. talked with a friend ,and loaded up the same componutes, except with CCI primers. 3/4" group. You have to make sure that ALL your componuts are the same. Respectfully Terry Quote Link to comment Share on other sites More sharing options...
shibiwan Posted July 19, 2014 Report Share Posted July 19, 2014 (edited) Haha... my problem lies in the trigger nut. I shoot well when I'm relaxed and rested but as I go along my groups go from 1" to 4". <laughs> Maybe I'm getting too old for this.... P.S. Anyone got experience with LC MATCH brass (yes that's what the headstamp says)? Picked up a bunch at the local metal salvage place. Nice pristine once-fired brass at $3/lb. Edited July 19, 2014 by shibiwan Quote Link to comment Share on other sites More sharing options...
98Z5V Posted July 19, 2014 Report Share Posted July 19, 2014 After watching SS do his barrel comparison between .308 16" and 20", I've watched for all the little details in the numbers. After seeing what he's been doing, I've revised what I do on accuracy-ammo for my 5.56 rifles. I've been sorting my Lake City brass by year, and then weighing each brass piece to see the differences in weight. I've combined some years of brass based on similar weight, and marked and sorted (loaded) ammo based on that. Haven't had them out yet for a good shoot and comparo, but I'll get to that once it cools down here. Everything makes a difference, and if you can keep as much as possible "the same," you'll definitely see the differences that it makes, downrange. Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted July 19, 2014 Report Share Posted July 19, 2014 Don't know if it makes a difference but a couple of people on a different forum SWEAR sorting by flash hole size makes a difference. Two guys noted that Lake City brass had four varying sizes of flash holes, even within the same lot number, and came to the conclusion they must have four different machines for that operation. Quote Link to comment Share on other sites More sharing options...
sketch Posted July 19, 2014 Report Share Posted July 19, 2014 Newb ? Is there a dictionary or index of abbreviated manufacturer And year marks? I collect what I shoot and what I find. Very wide variety. Thanks fellas Quote Link to comment Share on other sites More sharing options...
Sisco Posted July 19, 2014 Author Report Share Posted July 19, 2014 Try googling the markings on the case. That worked for me with some really old rare stuff I found. Quote Link to comment Share on other sites More sharing options...
shibiwan Posted July 19, 2014 Report Share Posted July 19, 2014 This is how you find out about headstamp codes. http://bit.ly/1rzOAjB <laughs> Quote Link to comment Share on other sites More sharing options...
Tripledeuce Posted July 19, 2014 Report Share Posted July 19, 2014 LC match brass is GOOD stuff! Used a lot of it! Respectfully Terry Quote Link to comment Share on other sites More sharing options...
sketch Posted July 20, 2014 Report Share Posted July 20, 2014 Ok shibi thanks for dumbing it down for me ;) Quote Link to comment Share on other sites More sharing options...
shibiwan Posted July 20, 2014 Report Share Posted July 20, 2014 (edited) LC match brass is GOOD stuff! Used a lot of it! Respectfully Terry These are what I got my grubby hands on...and there's tons (literally 15,000 lbs of mixed brass) to pick from. Edited July 20, 2014 by shibiwan Quote Link to comment Share on other sites More sharing options...
Tripledeuce Posted July 20, 2014 Report Share Posted July 20, 2014 Sort by mfg and year. You cn also refin that y sorting by weight after sorting by mfg ans year. respectfully Terry Quote Link to comment Share on other sites More sharing options...
tayronachan Posted August 1, 2014 Report Share Posted August 1, 2014 At the end of the day today at the range, I had five rounds left. Three were in Lake City M118 brass, and two were in Winchester M80 brass. All were loaded with Winchester primers, RE15 41 gr., and 175 Sierra Match Kings. The three upper left are the Lake City, the two lower right are the Winchester M80. Mix and matching brass manufacturers can affect your groups. 100 yards off a bipod. AR10T carbine, 16 in barrel.image.jpg I learned that lesson today (and a little humility). A week back I shot a itty bitty group, and I thought I was dialed in, let me tell you! So today I go out with the *same load*, and groups were 1.5 to 2.0 moa. The only difference? The brass, which was mixed. Quote Link to comment Share on other sites More sharing options...
tayronachan Posted August 1, 2014 Report Share Posted August 1, 2014 These are what I got my grubby hands on...and there's tons (literally 15,000 lbs of mixed brass) to pick from. 15,000 lbs of .308 brass? Do you want to be my new best friend? Quote Link to comment Share on other sites More sharing options...
Tripledeuce Posted August 2, 2014 Report Share Posted August 2, 2014 Well, I'd be interested in 1,000 rounds, if you want to sell some. Even 2,000. Respectfully Terry Quote Link to comment Share on other sites More sharing options...
survivalshop Posted August 2, 2014 Report Share Posted August 2, 2014 I'll take 500 , but you should just give it away because its so old , from the mid sixties it looks . <laughs> Really I'll take 500 . <thumbsup> Quote Link to comment Share on other sites More sharing options...
98Z5V Posted August 3, 2014 Report Share Posted August 3, 2014 $hit, here goes another "Asian Side Business..." <lmao> Quote Link to comment Share on other sites More sharing options...
shibiwan Posted August 3, 2014 Report Share Posted August 3, 2014 I'll take 500 , but you should just give it away because its so old , from the mid sixties it looks . <laughs> Really I'll take 500 . <thumbsup> Well, I'd be interested in 1,000 rounds, if you want to sell some. Even 2,000. Respectfully Terry Didn't think any of you guys would be interested in the old once-fired brass...... Quote Link to comment Share on other sites More sharing options...
Tripledeuce Posted August 3, 2014 Report Share Posted August 3, 2014 Yes, a lot of us are interested in once fired brass. Especially good brass. Terry Quote Link to comment Share on other sites More sharing options...
98Z5V Posted August 3, 2014 Report Share Posted August 3, 2014 (edited) I fucked this one up.... :bat: :happydrunks: Edited August 3, 2014 by 98Z5V Quote Link to comment Share on other sites More sharing options...
98Z5V Posted August 3, 2014 Report Share Posted August 3, 2014 Shibi fucked himself... <lmao> Go dive your a$s into 15,000 POUNDS of brass... :banana: <laughs> Quote Link to comment Share on other sites More sharing options...
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