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  1. C

    "HEADSPACE" and the Ruger RPR

    I think old timers disease might be kicking in but I don't remember reading about the "real" science and headspace in the RPR. I've read about folks pulling their aftermarket barrels to apply shims and this is where my question comes in and the following is based on assumptions-hell, I don't...
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    Ruger Precision Rimfire QC-old versus new

    I picked up a new RPR this last December and wanting to learn all the idiosyncrasies of my new toy, I read all 30 pages of the RPR thread-it really is a treasure trove of info for a new owner. I disassembled the rifle and during the cleanup process it became apparent that there has been a...
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    Question about 9mm "Glock mag" AR lowers

    I have a Stag left hand 9mm AR that is a lot of fun to shoot. I love fiddlin' with stuff and installed a bunch of Blitzkrieg goodies in it-it's 100% reliable even with some wimpy ass loads like 3.2 gr Clays with a 115 gr bullet and 3.1 gr Sport Pistol and 147 gr bullets. Also added a CMC trigger...
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    Different chronograph---different velocity

    I have a Caldwell chrono that didnt cost more than around a hundred bucks and i really like it. It came with a cord that connects to my iPhone with a pretty cool app that records all kinds of data. ANYWAY, my friend has the cheapest model of the Magnetospeed and I did a test to see how close...
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    Gunsmithing Why does my Rem 700 bolt handle jump during firing?

    I recently put together a .224 Valkyrie using a trued, stainless PTG left hand action with a fluted bolt and an M16 extractor with a Criterion 24 inch light varmint, 1-6.5 barrel. The rifle shoots lights out, the best group was yesterday, shooting FIVE rounds into yes--- .111 using an 80...
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    If you want a dedicated .224 Valkyrie magazine-read this!

    Talked to someone at Accurate Mag and he said that they are working on a new insert for the .223/5.56 DSSF magazine that will be made SPECIFICALLY for the .224 Valkyrie round for bolt guns. He suggested that if they had more feedback they might get things done sooner-if the boss gets a better...
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    Stag 9L muzzle thread

    Have a new one on the way-does anyone know if the barrel is threaded 1/2 by 28 or 1/2 by 36? Not getting a response from Stag online. Thanks for the replies!
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    Range Report What is the G7 BC for the Sierra 6.5 mm 130 TMK

    Title says it all. I can find the G1 BC all over the place-spent all afternoon and NO joy on G7 info.
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    Gunsmithing What bolt can be used with a .224 Valkyrie

    I m a lefty and I can pick up a variety of left hand Savage bolt guns for a some great prices to do a barrel swap. I've built five rifles so far using Criterion barrels using both Savage and Remington/Remage setups with better than .4 MOA at 300 yards and I'd like to build a .224 Valkyrie. My...
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    Can I put a DPMS upper on a S&W AR 10 lower?

    Friend picked up a SW AR10 and it shoots LOUSY groups. I said change the barrel and he said he can't because the upper uses proprietary parts. Will a DPMS type upper fit on a SW AR10 lower?
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    Another question on difference between .223 and 5.56 brass AFTER prep

    After firing both types of brass in MY rifle and then during prep, full length resizing and trimming the cases to the same length (1.75) is there any dimensional or capacity difference between the two cases other than what is found because of case wall thickness, etc. ? I'm guessing not.....
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    4451 works great with 130 grain TMK's in my 6.5 Creedmoor

    I've been working up loads for my 6.5 Creedmoor AR with a 22 inch Criterion barrel and I think I can stop looking. Just came back from the range and found that 40.5 grains of IMR Enduron 4451 in Hornady cases with CCI BR-4 primers and the 130 grain Sierra TMK gave me a five round group of .757...
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    should this be "dressed'?

    Here's a picture of the bolt face of my JP "matched" bolt that is in my LR 308 build that is based on a JP 20 inch barrel and low mass bolt carrier. The rifle now has approximately 200-300 rounds down the tube. It appears that only two "ears" of the bolt are making any real contact with the...
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    Is lateral "stringing" only caused by poor technique?

    Started working up some loads for a new JP medium contour .308 barrel/low mass bolt I just built up. I had a couple of loads that gave me almost no vertical dispersion but kinda "stacked" five rounds horizontally at 100 yards. Winds less than 7 knots. My question is: a. does vertical...
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    question about the ladder/nodes

    Can the people that have done the node tests at 300 yards give me an idea of the typical vertical spread you get with 308 and 223 ammo? I'm trying to figure out the size of the target I'll need to use for each caliber at 300 yards to capture all of the shots. My plan was to sight in to...
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    Forster "micrometer neck sizing die" only sizes the neck---right?

    I was able to pick up a set of 308 and 223 Forster Micrometer neck sizing/seating dies off of Ebay for 150 bucks total and they look unused-I'm pretty stoked. The question is can they be adjusted or used to "bump" the shoulders of the cases or can they only be used for sizing the neck...
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    When do you not have ENOUGH bullet seating depth?

    Just got back into reloading after about 10 years and doing some re-learning. I've put together some 168 grn Sierra Matchking loads with 39.5 grains of 4895 which was my pet load in my Model 70 HBV 308-and good to see it still is! Picked up some 155 grn Sierra "Palma" HPBT match bullets...
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    lube a titanium firing pin or put it in dry?

    I replaced all of the firing pins in my uppers with titanium pins and my question is should I put them in dry, hit 'em with some silicone or use CLP?
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