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supertux1

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About supertux1

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  • Gender
    Male
  • Location
    Wisconsin
  • Interests
    Long range precision shooting, concealed carry, Glock, self-defense, survival. Gun-rights and second amendment activist, NRA member.

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  1. Aero Precision is sending me replacement parts (M5 Upper, LPK) for free after FedEx denied the theft claim. They're out of PMAGS so they are refunding my credit card for those. They didn't have to do this. Stand up company. I will be buying a completed 308 upper from them when the 6.5 CM is done.
  2. supertux1

    Yet Another Build Thread - My First Large Frame AR

    I've messed with ones that were hand loaded specifically for the chamber they were to be fired in, right up to, and into the lands.
  3. supertux1

    Yet Another Build Thread - My First Large Frame AR

    So you are claiming you've got sub-MOA @ 850 yards (8.5" groups or under) from a 5.56 when a little ballistics math shows that even a mild wind is going to throw that exact bullet and load off 24" left or right at the target? (That was why I posted the other bullets, for comparison, because I find it hard to believe you can group as you say you can.) I have no doubt you can hit a target of that size more than once, eventually, -it is still supersonic and stable-, but unless it's a perfectly nice day at the range I don't see very many tight sub-MOA groups happening. It doesn't matter if you shoot the thing out of a golden barrel blessed by Jesus himself with the finest powder packed up to the neck, it's still a tiny inefficient bullet going through all that air. If that's what you like to do, more power to you, I would just like to try something else now.
  4. supertux1

    Yet Another Build Thread - My First Large Frame AR

    Good to know! I'll pick a set of those up. ( I was looking at those when I was considering the M4-72 )
  5. supertux1

    Yet Another Build Thread - My First Large Frame AR

    How big is the target and what are your groups like? Does it have feeding issues with those big bullets? I've seen some long 77 grains that are amazing out of a 1:7 twist, but need hand chambering. That bullet is gonna drop 240 inches @ 850 yards and with a 5mph crosswind, 23" left/right drift. 270ft-lbs. .308 Hornady 178gr HBPT @ 2600 fps drop 252 inches @ 850 yards. 5mph crosswind, 17.5" left/right, 770 ft-lbs. 6.5 Hornady 147gr ELD @ 2690 fps drop 204 inches @ 850 yards. 5mph crosswind, 11.5" left/right, 946 ft-lbs. Edit: To be fair, the .308 barrel is going to last longer.
  6. supertux1

    Yet Another Build Thread - My First Large Frame AR

    You bought the extended warranty too didn't you? Salesman told you it'd explode and you'd be homeless if you didn't right? πŸ™‚ So I ended up ordering the rest of the parts to complete the upper: Proof Research PR10 Carbon Fiber CamGas 22in 6.5CM Rifle + 2" + gas tube. JP Enterprises RC Handguard for DPMS LR-308, XXL Length, Black JPHG3-7D-RC JP Enterprises Tactical Rail Kit - 2-inch Front Sight Tactical Rail JPTR-FS JP Low profile .875 2-piece Gas Block JPGS-10D Thunder Beast CB Muzzle Brake (going with the Thunder Beast can) Going to pick up some headspace gauges, crush washers, bore guide etc... other bits and tools as I need them. I found a shitty red dot and a mildot scope in my parts box from an older rifle that will be ok for 100 yards barrel break-in. Picked up some 6.5/.260 jags and cleaning rod from Cabela's last night.
  7. supertux1

    Yet Another Build Thread - My First Large Frame AR

    Finished the lower tonight. LPK didn't come with safety selector detente (no, I didn't launch/lose it) so I borrowed one from an AR-15 kit. I launched the front takedown detente, but it bounced right off the window and into my lap. :) (Interesting way that one goes in through the front as opposed to the AR.) Basic function tests work ok, nothing out of the ordinary. Silent captured spring is smooth, heavy bolt carrier group slams forward with authority. Coming in at 6 lbs 2 oz. unloaded no optic, no barrel or handguard yet. Add 3lbs for PR 22" 6.5CM barrel, 1 lb for the XL JP handguard rounds it out to a little over 10lbs Add 5pounds for bipod and optic, this is gonna be one heavy sucker. :)
  8. supertux1

    Yet Another Build Thread - My First Large Frame AR

    Good to know. Based on this, I am strongly considering one of the JP blocks which is restrictive only and will probably fit better under the handguard I want from them.
  9. supertux1

    Yet Another Build Thread - My First Large Frame AR

    I think it's for specific suppressed applications where your support hand location / thermal optics aren't going to be an issue. Probably okay for bench rest shooting in the day time with your support hand under the stock or on a vertical foregrip, but would probably suck for applications where your offhand is on the guard over the thing, or if you mind cleaning fouling from yet another part of your rifle. (The last part doesn't really bother me so much, tools not jewels.) That being said, this is a part primarily designed for AR-15's and not our large caliber applications so there's always that. This guy did a lot of testing with it, fully semi-automatic and suppressed, albeit on the small frame: JP's blocks, similarly priced and engineered for 308 do not feature this bleed off capability,
  10. supertux1

    Yet Another Build Thread - My First Large Frame AR

    I asked them a lot of details about suppressed applications with their camgas length, what is known to work with their barrel. Proof said that a lot of their guys used that specific one on their personal setups. Got back to me quickly and answered a lot of my questions. Good to know that it might not work for all 308 applications, but hopefully I can address any cycling issues with the wide variety of springs and weights.
  11. supertux1

    Yet Another Build Thread - My First Large Frame AR

    Yeah you guys are hilarious! Arrived today: JP HP Enhanced Bolt JP Heavy VMOS JP Heavy Silent Capture Spring Extra steel weights and springs to tune. After talking with the fine folks at Proof they recommend the Superlative Arms adjustable gas block and the head spacing with that bolt won’t be an issue. PMag, Upper and LPK will be here tomorrow. I’m starting to think this is going to turn out like a JP-LRP07, but with a better trigger and barrel.
  12. supertux1

    Yet Another Build Thread - My First Large Frame AR

    Yeah - I hear you, the order there is listed as more of like a priority list, not a list of must-haves -- such a rifle doesn't exist, so there is always a compromise somewhere. That being said, if there's a part that works with all three uses, or does one well and another case acceptable, then it gets consideration over a part that works with only one or two, even if it is a bit expensive. Buy once, cry once. The Proof CF barrel has my attention because it purports to have all the same internal ballistics (or better) than a traditional heavy steel barrel while only having %60 of the weight or something like that. That fits the bill for 'precision' on the range, but also maybe not a pain in the ass to lug around for 'animate' targets... What didn't you like about it, besides the price? I am definitely going to take your advice and build a shorter barreled .308 upper after this build is done. (It may work out that I have an extra upper anyway, due to my first one being stolen from the mail. Grr...)
  13. supertux1

    Yet Another Build Thread - My First Large Frame AR

    Yes, iron sights. I don't really count 5.56 a real long-range precision projectile but some guys have a lot of fun accuratizing their AR-15's and what not. It is certainly a good caliber for the ranges around here. I'd rather spend the money building a large frame rifle that can shoot more ballistically efficient rounds and is more appropriate for hunting which I'm just getting into. There is a 600yd range in Columbus, but that's a club and I've only ever shot there as a guest. They're really strict about the use of their long range (nothing less than .308 and training is required) and it isn't always open. They want RSO supervised long-range shooting, which is understandable. The one in Lodi is Winnequah Gun Club and they are the private fancy one with the 1200 yard range. I'm hoping to get in there with a referral from a service member. I was doing ballistic calculations with 6.5 CM ELD bullets and 1400 yards came up as the max supersonic range so that would be perfect. (Members also get a discount on Vortex optics which I'm told is more than the price of the membership. So we'll see. There's a waiting list.) A little further away is McMillan Sports Center which offers a 300 yard public range, but they want $30 a day or $400 a year membership to shoot there. A little steep and far away but currently the best medium-ish range option for most folks unaffiliated with a club. I've shot my AR there and I'm getting bored. Not too far away, the DNR is building a brand new fancy 100, 50 and 25 yard public range which is supposed to open this summer after they fix the damage recent rains did to the berms. That'll be great for scope sight-in and zeroing and coppering up a brand new barrel, tuning the gas system, 100 yard trick shots, one ragged hole etc... There is also the Dane County Law Enforcement Training range which is 100 yards and open to the public on weekends for $10. The 800 yard shooting I've done is on an acquaintance's farm up north, private land, no benches, just dirt. Usually, we lay on the ground or in the bed of a truck and shoot at random junk, steel etc... I do that a few times a year and get use a borrowed Remmington 700. I've been hunting with that too, so now I'm basically hooked on the bigger calibers. πŸ™‚
  14. supertux1

    Yet Another Build Thread - My First Large Frame AR

    300 yards with 5.56 800 yards with .308 We don't have very many public 'long ranges' here beyond 300 yards (like 2 maybe) but I may be getting a private membership to one that is 1200 yards. (On the waiting list.)
  15. supertux1

    Yet Another Build Thread - My First Large Frame AR

    Good to know! I was thinking of maybe the Atlas but I will wait for the MagPul one if it's half the price. Money isn't a problem but only if it's paying for quality. πŸ™‚ (So the charging handle -- yeah I know haha, I got it and the trigger when Brownell's had %25 of Geissele parts plus another %10 off overall code -- I couldn't resist! ) At the range, I shoot from tables, some wooden, some concrete and don't like how the bipod jumps around, it's kind of hard to load the bipod when there isn't anything on the bench for it too. I get better groups from my Weibad sandbag or range pack when I have to shoot from a hard surface. At long range we shoot prone on the dirt and the bipods work well when dug in there.
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