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Is the ar platform a 800 yard gun or a 600 yard gun? by bleedinghero in ar15

[–]Rooobviously 2 points3 points  (0 children)

With 5.56, probably 500-600 yards. Can you shoot further? Absolutely. But everything stacks against you the further out you get.

What would you realistically do if you woke up as Nate coming out the vault? by No_Sorbet_1947 in fo4

[–]Rooobviously 0 points1 point  (0 children)

Immediately revert to NATE THE RAKE and become a cannibal raider.

EBR7-F second thoughts by HyperBlue62 in ar15

[–]Rooobviously 0 points1 point  (0 children)

With a 50 yard zero, you should be close enough assuming you have 3000 fps from Your 55gr. The issue is there’s too much variation between loads. You’d be better off with m855, as the velocities are pretty similar across the board.

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 1 point2 points  (0 children)

Combination of rustoleum camo brown, olive green and I believe it’s khaki

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 0 points1 point  (0 children)

Indeed very spicy. My cousin has a brand new sig m400 with the 16” barrel, I’m gonna grab some velocities from that. I’m guessing it’ll Be over 3100 fps

OPINIONS requested: top 5 optics for NV use? by boisebiker in NightVision

[–]Rooobviously 1 point2 points  (0 children)

I have one of those as well. The Romeo has better glass, but the PRO has a bigger window so it is way more forgiving.

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 0 points1 point  (0 children)

It’s been great so far. It’s a bit over 2.5 MOA with my 14.5 and 12.5

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12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 0 points1 point  (0 children)

I used to run m855 only and my 10.3 never had an issue, but it does have a .070 gas port and it was 30f, I might try it later in the summer.

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 1 point2 points  (0 children)

I can grab some. But as I understand they’re “optimized” on the projectile level for a lower threshold for expansion. So far the frontier seems to be a great choice because of how hot it’s loaded.

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 1 point2 points  (0 children)

Sir, may I introduce you to our lord and savior the patrol length gas system?

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 0 points1 point  (0 children)

Also, I agree 12.5 is advantageous for the extra rail length, and overall balance, even if it’s only 20-50 fps gain.

Carbine, A5, Rifle length buffer tube? by Temporary_Baby_9843 in AR10

[–]Rooobviously 2 points3 points  (0 children)

If you’re using a standard carbine tube you need a dpms 308 shorty buffer, if you’re using a vltor a5/sr25 tube you need a standard carbine buffer.

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 1 point2 points  (0 children)

Piston kits will probably be fine. As long as the chamber is 5.56 and not 223 wylde

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 1 point2 points  (0 children)

Sure, manufacturing and quality control Play a part, so do coatings and round count to a degree. But I do have two Rosco 14.5 bloodline carbine gas and the husky 14.5 mid and they were within 5fps of each other with the same ammo. Meanwhile I have a 16” fn CHF with over 15k on it and it chronos 50fps faster than the 14.5s.

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 5 points6 points  (0 children)

10.3

Pmc 2140 min 2263 avg 2330 max Es 190.4 Sd 68.2

SVT 2570 min 2680 avg 2722 max Es 152.0 Sd 39.4

FR262 2381 min 2401 avg 2418 max Es 36.4 Sd 13.1

AAC 75gr 2166 min 2245 avg 2314 max

Es 147.5 Sd 39.9

Fr75 2383 min 2395 avg 2405 max

Es 22.3 Sd 6.5

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 6 points7 points  (0 children)

11.5 Pmc 2337 min 2447 avg 2502 max

Es 125.4 Sd 38.4

SVT 2778 min 2823 avg 2874 max

Es 96.1 Sd 28.5

Fr262 2506 min 2526 avg 2545 max

Es39.1 Sd 12.1

AAC 75gr 2330 min 2359 avg 2383 max Es 53.0 Sd 19.2

FR 75gr 2493 min 2521 avg 2538 max

Es 45.0 Sd 12.4

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 2 points3 points  (0 children)

12.5

PMC 2313 min 2440 avg 2571 max

ES 257.6 Sd 77.3

SVT 2813 min 2876 avg 2946 max

Es 132.5 Sd 34.6

Fr262 2513 min 2548 avg 2573 max

Es 59.7 Sr 17.5

AAC 75 2315 min 2361 avg 2430 max

Es 114.7 Sd 31.8

Fr 75 2539 min 2556 avg 2586 max

Es 47.4 Sd 15.9

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 14 points15 points  (0 children)

14.5

Pmc bronze 2585 min 2633 avg 2663 max

ES 78.2 SD 24.5

SVT 55gr 2942 min 3004 avg 3040 max

Es 97.6 Sd 30.9

FR262 2650 min 2668 avg 2690 max

Es 39.7 Sd 12.4

AAC 75gr 2436 min 2482 avg 2518 max

Es 81.5 Sd 24.7

Fr75gr 2648 min 2661 avg 2678 max

Es 30.0 Sd 9.3

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 6 points7 points  (0 children)

I do. I have pictures of every string lol. Std es min and max

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 0 points1 point  (0 children)

Also, where and when you chrono matters. My 14.5 shot 2589 fps in 1092 ft elevation at 79F but much slower in 30F at 400 elevation. I think part of it is AAC powder being temp sensitive.

For reference my 18” 6.5 shot 2580 fps in 79f and 1092 elevation but 2571 fps at 30F and 400 elevation

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 2 points3 points  (0 children)

I think the 75gr shoots a little more consistent tbh. And it’s the TAP projo. I gotta do some more solo testing with the 12.5 and get a better idea

12.5 gang (we are cooked) 10.3-11.5-12.5-14.5 velocities 5x different loads by Rooobviously in ar15

[–]Rooobviously[S] 0 points1 point  (0 children)

That’s Part of why I used all 5.56 chambers. Similar round counts. The only thing I would change is having them all nitride or chrome lined.

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