98Z5V

I never read about any of that, with any military snipers?... Oh yeah - that's your fallacy... that you tell yourself...

Come out here and shoot with me - I'll make it all clear, for both systems. The only cost you incur is getting here. The training is free-fiddy-free.

Because they have to. Because nothing really divides by 1.047-anything... "Honey, it's really not an INCH..." They just never get it quite right, tough, thinking "it's only an inch..."

God Bless Him!!!

... those are the ones that can't do math. Have to think in "inches" all the time, when they're "shagging that sister"... Can't comprehend a real scope adjustment, that matches degrees in a circle... I mean, shiit, how hard is it - there's 360 degrees in a circle... Artillery doesn't use MOA - it's not accurate enough...

That's exactly the bastardization that occured, and the military forced the scope makers to stick with a standard. One or the other. Mils won.

Nightforce makes Mil scopes - that's the ones that the military snipers choose. They leave the MOA to the civilians, though. The uneducated civilians. Oh, and the gamers. I'm just sayin'...

That's cute - @Belt Fed buy that for you?...

Here's another bit of information: https://taskandpurpose.com/gear-tech/762x51-vs-308-difference/ Any differing opinion should be taken up with the editors of Task & Purpose. Tell them that they're wrong.

Read this first before you want to pin that, for all the ages to come... https://sofrep.com/news/whats-difference-308-winchester-ammo-7-62-nato-not-think/

^^^ Those Arken 6~24 scopes (the SH ones in the model number) are pretty damn nice. I've shot the MOA one on someone else's gun, and I was impressed with it. Well, I mean, I felt dirty shooting an MOA scope, but the quality was there, and it's a damn good piece of kit. @Matt.Cross

I like it! We need to make this an Official Board Holiday. Everybody stay home and post it up on March 8th...

Rubbish. They don't know how WC is making their barrels, anyway. Aero sends out light recoil systems, and makes gas ports smaller to compensate for this - WC does the same on some barrels, but not all. Both my .260 Rem barrels had to go up in diameter, but the .338 Fed barrel was excellent. WC's Intermediate gas system is slightly longer then midlength gas. What I know for a fact: 18" midlength gas barrels with a 0.750" gas block journal diameter require a gas port diameter that's between 0.080"~0.085". You have a shorter 16" barrel, and a longer gas system, so that equals less dwell time. Your gas port will need to be smaller than what I listed above. However, you have an adjustable gas block , and you can always adjust the pressure down. If that was my barrel, I'd be going for something in the range of 0.075"~0.080" for a gas port diameter. On another note, always, always start a new adjustable gas block wide open. Can't stress that enough.

I'm using the 178 ELD-X projectile - it blows away the 178 ELD-M projectile - once-fired LC brass with CCI 200 primers, and Accurate 2495 powder. It's an amazing load. Through an 18.5" gas-gun barrel I'm getting 2530fps with 40.6gr Accurate 2495, CCI 200, 178 ELD-X, and it's the most accurate .308 Win load I've ever come up with. I worked it up specifically for that gun. The Hornady 11 Manual lists Varget starting at 35.0gr @ 2100 fps, ending 42.4gr @2450fps max load.

That's 2" over AR15 Rifle Length gas, right there. Every gas tube is 0.600" from the center of it's end gas port to the end of the tube (capped end), so that number can come in handy when ordering spare custom-length gas tubes. Dwell time on your 22" with Rifle +2 Gas will be the same as my 20" Rifle gas .260 barrel. It needed 0.080" gas port diameter to run right, with a 0.750" journal. You have the same dwell time, but up two sizes on the journal diameter. General rule is 0.005" port diameter per journal size, but that's a range, not a spec. Your 0.655" port diameter needs to be at leasy 0.070" diameter, but could run up to around 0.073" diameter. Drill the gas port up. The gun will run. Keep the gas block wide open for all the testing - maxed, wide open.

Alright already... I missed it...

I'm gonna pain the FUK out of this thing...

All gauges are good - to what the manufacturer specs, and they make them in accordance with cartridge specs. But there are tolerances, even in the case dimension drawings, on every cartridge. It all comes down to what gauges your barrel manufacturer uses, when setting up their chambers for Go and No-Go, and how tight they set their headspace for those gauges. Some gauges will give you a No-Go on a Go gauge, just based on that.

I feel some deceit and treachery on my horizon...

Rule #1 with adjustable gas blocks. You run adjustable gas blocks WIDE OPEN, like you'd savage a 2-stroke MX bike on a motocross track. You ALWAYS start an adjustable gas block WIDE OPEN. If you don't, you're wasting ammo, and wasting time. If it's not wide open, you'll never, ever know if your gas port is large enough - which your's isn't. Rule #2. Dwell time. Distance between the gas port and the end of the barrel. Exactly why I asked you to specifically define your "XL Gas System" that you got from JP. Rule #3. Gas block journal diameter. You never stated it, and I'm not looking it up on JP's website, for your barrel. What's the journal diameter? You answered alot, with the details you provided - but there's alot more that you left out. I'll fix your .260 - I have 2 that run like Swiss watches. Until I get these details, I'm wearing a blindfold, and throwing darts at the dartboard...

Define that gas system length, exactly. How long is your gas sytem - it's not rifle-length gas - and how long is that gas tube, end to end, exactly... Details. Not names. Numbers, matter. That gas port size is fucked for a .260 Rem, with your barrel dimensions that have been stated. Thanks, JP, for sending us another customer. Let's see what JP says about this - so make SURE you post what they reply to you... You're dealing with Race Gun Parts - and not trying to make a Race Gun. That's the first problem...

There is - in my head. I've written about it as much as I can, every single time I can, and I spill details as often as I can - on why gas ports work. And when recoil systems must be matched. And why both systems MUST be balanced, in order to reliable function your rifle. Gas systems and recoil systems are the heart of your reliability. I've delved into this as much as I can here, on why what works, WHAT works... Different journal diameters just came up the other day, and I got into that. And why. It really just sucks to keep going over it, time and time again, it really does. The info is already all here. Hate to be a dick about it, but the info is already here. I've even made posts on how to calculate it. With diagrams, because some of the guys here need the crayon-method to comprehend shiit. I'm talking about the old-timers, too - not newbies.

I kinda figured you wouldn't see that for at LEAST 2 days...