98Z5V

Hell yeah, brother! The only lessons you truly learn, are the ones that HURT!!!

Rare Breed let's it rip... 1.5 hrs long, but worth it. Explains alot that Mike bitched about, towards the end of this thread, lately.

I can tell you what you need for a recoil system - but I want to hear from you what your planned recoil system is first - and discuss that further, if necessary. Let it rip. What are you planning for your recoil system, and how did that come to be your conclusion...

Get the Gas System and Recoil System balanced - and it should do great with a flow-through, and non-adjust block. Suppressed and unsuppressed. Tell me what your barrel config idea is, and I can tell you what the gas port diameter should be. For a 12.5, you should run a Carbine Gas System. If you decide to run a 13.5, you can get away with a midlength gas system. I can give you gas port diameters for both configs. 12.5 and midlength gas is tough to pull off, even in a 5.56 gun. Trust me. I have a few of those. Dwell time becomes the biggest issue.

Non-adjustable. I believe in balancing the gas system to the recoil system. Get the gun right first, before you introduce suppressors. After suppressor introduction, if you need to change to an adjustable gas block - that's when you do it. Not out of the gate. Make the gun right, first.

Check it. Gotta watch the whole thing to catch the real narrative here...

^^^ I have one of those, and kind of pioneered the gas tube length issue - how to measure, and get what you need. Those barrels were released with two different gas port locations. So, I have that 12.5" barreled .308 Win gun, and a 13.5" barreled .308 Win gun. OP, if you run into issues building one of these, post up here. Both mine run like a pissed off Banshee...

SIG finally is trying to say something. It's not working well. I'm gonna start this with some Johnny B DRAMA LLAMA GO!!! Here's how SIG is trying to dig themselves out from under all this - and it's not good. They are trying, really hard - but what this SIG guy is saying about how the 320 operates - isn't happening. For whatever design reason,whatever "engineering" reason, implemented into reality... It's not working. "Intended Design..." "Engineering" Vs. "Execution." It comes to that. ^^^

PSA certainly hasn't changed their large frame platform - they don't care. They make money, on cheap guns and a bad design, with band-aid "fixes" to work around their problems, and just sell to the masses. PSA is worried about the bottom line, profit, and doesn't care about much else. Ballistic Advantage makes all the barrels for AP. If there's a BA barrel that the gas port diameter is off, it's a very, very rare anomoly. That doesn't happen with BA barrels, and it's a fluke or a glitch in the matrix. I have a complete PILE of BA barrels in my guns that will attest to this statement. Trust me, there's alot of them.

Your style is way, WAY better, than shoe leather, brother. By far.

Magwa...

Maaaaaaan... I caught on to Ralphie May when he first came out. He was one of my favorite comedians, and they'd get him on the local Phx rock station in the morning show, routinely. They'd just call him up, cold-call him. One of the best, brightest minds in comedy. He is missed... He had a SMOKIN' HAWT WIFE, too!!!

Charlie Tarac. Those things are insane... Basically - whatever you have - multiply that by what they say their device will do... They are all clip-ons or add-ons, and go on the end of the scope, or on the rail in front of the scope. Or, combine the clip-ons and add-ons for that much more. Exponentially.

Johnny B!!! DRAMA LLAMA GO!!!

Are you serious?!!? He gave me the last of those parts?!!? I definitely need to get off my ass, get into the shop, and build triggers for him. Man, I seriously didn't know that...

@JBMatt, try to find my Stage 5 vid, if you guys captured that, when Rigo was talking shiit... It shows what this trigger can do. 2 of the 12" gongs on a hanger were target 1 and 2, at 310 yards. Rigo was squaking something when I went up to the line, and I just said "Hey Rigo - watch THIS..." I double-smacked those things so fast that the second one was swinging before they called the IMPACT for the first one... Take that, Rigo...

So, Matt had the top of the line badass 2-stage trigger, all the coatings, etc., then Jules wanted it back. Prototype. Experimental. Somehow, in the testing, I ended up with it for about 2 weeks. I killed 2,000 flies on the back wall of the yard, dry-firing that thing, and Matt tells me I need to give it back, because it's going to AJ Anthony, #1 3-gunner on the planet right now. And, it's right before a match. AJ decides he doesn't want to change anything before a National match, and he's crunched for time, so I get the trigger for another week - and I shot it in last month's match. It's badass, loved it, gun was fucking up with shiit ammo, but the trigger was great - and Jules was in the squad with us. Gave him my feedback, told him I need that trigger in my life, don't care what it costs, and that's that. Jules tells me to come to the shop, hit him up, and he builds that trigger for me - not the whiz-bang fancy-coatings one, but the 2-stage. That's what I have now. The badass 2-stage, and I think it's just the basic one, no fancy coatings - but it doesn't matter... I don't need the fancy coatings, because this thing is MONEY... 1lb 9oz combined pull is what Jules said, when he handed it to me, after testing it in the pull gauge... It's just the most ridiculous 2-stage I've ever had. YOU... @JBMatt - you got to assemble whatever trigger you wanted, from the parts available, and you built what you built. That's on you...

That's bullshiit... You built your own hybrid trigger that you wanted, right there in the shop...

This is what we're dealing with, men... Women are just batshiit... I'm just sayin'... Here's the proof...

Check this out, fellas. @JBMatt on the radio this morning, from 7~9am. It's pretty badass. Ballistic Engineering Triggers. https://www.iheart.com/podcast/1248-don-mcdowell-outdoors-49217178/episode/81725-don-mcdowell-outdoors-289793246/ Not gonna lie - I've been trying to get Matt to make an announcement on these triggers here for awhile. This is the announcement. I'm running 10 of these triggers now, including the new 2-stage that's coming out in Q4 this year. Shot it in the match yesterday. The other 9 are AR Accurized triggers, mostly curved, a couple that are flats. Simply badass. https://www.ballisticengineering.net/

So, planning the scope mounting solution out. The scope is set, 32 mils of internal travel, advertised, both windage and elevation. I need to take half that elevation travel out. I need 16 mils out. I have 20 MOA built into the top of the rifle. I'm putting the Burris Signature rings on it, adjustable to 40 MOA. Math on that: 60 MOA in the mounting on that setup. 60 / 3.4377 = 17.45 mils. Good. The scope is advertised at 32 mils internal, but it's probably more than that. if it's actually 35 mils, I can have a 100-yard zero. If I don't get a 100-yard zero, I don't care. I'll take a 500-yard zero, just like the .300 Win Mag has. So, speaking in MOA... 20 MOA in the top of the gun, 40 MOA in the rings. 32 mils in the scope x 3.4377 = 110.0064 MOA, so 110 MOA scope travel. 10 mils in the actual reticle itself, measured out in that reticle, just for hold-over if I have to. that's another 34.377 MOA, or 34 MOA. Total max range that I'd build in would be the equivalent of dialing plus holding... 204-ish MOA... Or, about 60 mils.. That would let me dial/hold to 3100 yards. Dial only to somewhere between 2800 and 2900 yards. I'll never get it to 2 miles. I need @Magwa's Ivey mount... With the Ivey mount, I could dial only to over 3800, justt short of 3900, and I could dial/hold to a tick over 4000 yards. Damn...