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BC Correction

Doc Holiday13
Long Range 338 said:
An item I would offer for consideration is the actual rangefinder one is using. I'm not talking about Sig vs Leica, I'm talking about the exact unit in your hands.... For example if I range and true my ballistics with my Sig rangefinder, I would never trust my buddies rangefinder even if it were the exact same model. Once I've trued my hardware system, any change in that system is another variable that has to be verified.
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My 2 buddies used the same yardage for their guns and smacked the targets without the issue. I know they had their data trued for definite
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Kahles vz ZCO

wooferocau
carbonbased said:
He’s had lots of issues with certain S&B models too, but other S&B’s seem to work fine.
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Yep ...had lots of issues with the NEW series from S&B ( i had some of the very first samples released of the 6-36 and 10-60,s) .. BUT !!! The support from S&B in Germany has been beyond reproach !!!
I have been dealing directly with them and couldn't of ask for better support!! (y)

This..... is in the end what counts ... particularly with optics..
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Can we talk shooting technique?

oldrifleman
First off, fine shooter may be a big stretch. I generally shoot off a Bi-Pod/ rear Bag. My off hand (non-trigger) is used to pinch the bag to control point of aim and pull it into me. What my thumb does is still in transition (not sure which way yet). I try to do Precision style but I find on my ARs i often have better control wrapping my fat hand around the pistol grip which introduces some instability (alters recoil path) but if I need to load it more, I use that hand to pull back. A lot of this is practice and what works personally. We all develop a style for a reason. Be it physical strength/comfort or shooting style or equipment or shooting back ground.
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BC Correction

Doc Holiday13
Ledzep said:
If your MV is solid, I would guess that you need to bump your Axial form factor up a percent or two and you'll see it move things maybe .05-.1 at 800yd and make up that .3 at 1242. Verify your scope-over-bore measurement, too.
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So in 4D0F I bumped the form factor up to 1.08 and that seemed to get my ballistics to line up. Now I need to figure out how to do that with the Sig software
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Screaming Deals on Armalite Barrels

Jsp556
Green461 said:
I bought an AR15 one precovid, was awesome. Perfect finish like you describe. Post covid.... I dont know what the F I got. Tiger stripes all over it, rough machine marks all over it, faded uneven nitride finish, all the nitride coating (its listed as NItride) is flaking off all the razor sharp edges so sharp you could shave with it. lol. The machine marks around the barrel were also rough.. The finish was the least of the problems though.... gas port in wrong location, breach was never finished. It never worked and I sent it back... all 3 that they sent me. But the finish was the worst ive seen on anything.
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Nitride is just a surface treatment and doesn’t flake. It would have to be the steel it’s self chipping off. Different chemicals can change the color. The black is just carbon. It can be polished off and the surface retains its hardness and corrosion resistance and abrasion resistance.
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SOLD Mack bros evo ll

D
Great action for the money as most of us know. I'm selling only because I have another one and just bought a impact. This one has maybe 500 rounds on it. 308 bolt face. Asking $725 shipped to your FFL. Pp ff, venmo, zelle.
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BC Correction

Long Range 338
An item I would offer for consideration is the actual rangefinder one is using. I'm not talking about Sig vs Leica, I'm talking about the exact unit in your hands.... For example if I range and true my ballistics with my Sig rangefinder, I would never trust my buddies rangefinder even if it were the exact same model. Once I've trued my hardware system, any change in that system is another variable that has to be verified.
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Reactions: Schütze and vh20

"Over Gassed" AR's Fact or Fiction? Other Perspectives

S
Ledzep said:
Generally speaking, the ejection angle is the what you get when you add the ejection vector to the bolt rearward velocity vector. If your ejection vector is assumed to be pretty fixed/standard, then the variable is the rearward bolt velocity vector, and operating gas pressure is one of the main contributors to that.

Again, that assumes ejection (plunger/extractor interaction) is correct, and you can also affect it with buffer mass and spring rate, but the ejection angle is indicative of carrier velocity, regardless.

I can't find my "overgassed" video, but here's the rifle after installing an adjustable gas block. Before, with a standard gas block, the cases were smashing the rear of the ejection port and flying forward to 1 O'clock.
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Was this a suppressed gun?

Does Hornady have a good slowmo setup?

-Sutherland
TBAC
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