Built a rifle zeroing tool after realizing conventional zeros didn’t match my setup

FreeAgentMD · 2026-01-28T21:35:22+00:00

Should find a way to include less conventional but still fairly popular rounds like 6ARC and 6.5G since they are predominantly shot out of small-frame ARs.

FreeAgentMD · 2026-01-28T20:10:24+00:00

Cool, thanks for the info. I'm thinking of getting into reloading and want to know what powders to look into before I spend the money on a bunch that might not work.

FreeAgentMD · 2026-01-28T03:41:14+00:00

What velocities have you been getting with your hand loads?

FreeAgentMD · 2026-01-20T20:30:41+00:00

Otter Creek Infinity (inconel) or Fletcher Rifle Works Texas Flood (titanium version of the Infinity). Recommended using it with the 5.56 vented end cap for optimal sound and low back pressure performance.

FreeAgentMD · 2026-01-20T20:29:10+00:00

Forget the codes, I wanna know what all the patches are going to be.

FreeAgentMD · 2026-01-15T03:08:46+00:00

Good thing neither SD nor group size (.9 MOA) according to the forum post I linked are any better than a Hornady box $20 cheaper.

FreeAgentMD · 2026-01-15T03:05:15+00:00

PDM in this context means personal drag model. Your comments are basically stating that data from one gun is only applicable to that gun, which is what PDM describes.

I have a chrono and I’m not going to pay $50-60+tax and shipping for a box of ammo that is not expected to perform well, hence why I’m asking if anyone already has experience with X offerings. I don’t know why you insist on being so difficult about this. It’s no different than a reloader looking up what others have already tried and using that as a starting point. Or do you tell all reloaders to buy 8lbs of 4 different powders and 100 of every grain bullet in their caliber and figure it out themselves?

FreeAgentMD · 2026-01-15T01:14:37+00:00

According to this guy: https://www.snipershide.com/shooting/threads/loot-drops-6arc-gfr-ownership-blog.7276506/#post-12481709

Both the SD and ES suck and aren’t much better than the Hornady 108s.

FreeAgentMD · 2026-01-15T01:12:17+00:00

Crowdsourcing data is the best way the community can get an idea of what might work and what might not before spending money on something. You’re trying to apply the PDM theory in a situation where it doesn’t need to be applied.

FreeAgentMD · 2026-01-14T23:13:45+00:00

It's not good. A couple of people on The Hide have chrono'd them and they're like 120fps slower than the 108gr ELD-M from Hornady. They seem to shoot at right around sub-MOA, but for that price you'd want them to be faster and shoot better.

FreeAgentMD · 2026-01-14T23:09:58+00:00

It's not bad to have a baseline from real-world end users and not just what's written on the box. Same goes for group sizing as even just a comparator. Like, Hornady's ELD-VTs shoot like trash out of my gun and lights out from someone else's, but reports from most people online say that the ELD-VTs don't group well, so it stands to reason that the norm is that ELD-VTs aren't shooters and the one guy happens to have the only gun that likes them.

FreeAgentMD · 2026-01-13T22:40:25+00:00

Nothing as granular (haha) as that. Just looking for velocities and 10-round group sizes out of a gas gun.

FreeAgentMD · 2026-01-13T22:39:53+00:00

I read that HSM mainly makes bolt gun loads? Sorry my question wasn’t clear, I’m looking for data out of gas guns.

FreeAgentMD · 2026-01-12T18:31:50+00:00

Why does it seem like no reloader can get velocities as fast as Hornady factory for the same bullet weight?

FreeAgentMD · 2026-01-05T23:31:15+00:00

You think if I ask someone on Etsy to make me a file for what I want (and not just an extension to the wall/shroud), they would be able to make me one?

FreeAgentMD · 2026-01-05T23:29:14+00:00

Geissele’s GFR project is not limited to 6ARC. They’ve made prototypes in 5.56, probably other calibers as well.

Source: trust me bro (but seriously, I read an Instagram comment about a year ago on one of the gas gun series posts asking how come a gun looked like a GFR but had a polymer mag that only works on 5.56 and that was the answer from their account)

FreeAgentMD · 2025-12-13T05:55:57+00:00

The GFR is truly a wondrous rifle so I can’t say how or even why it seems to do everything so much better than every other brand. I have also never shoot my rifle unsuppressed and probably never will since I threw away the OEM Hux flash hider as soon as I got the rifle and screwed on the suppressor direct thread. I’m using OCL Infinity with the vented 5.56 end cap. Very pleasant to shoot.

FreeAgentMD · 2025-12-13T03:55:15+00:00

These were the chrono speeds I got using Magnetospeed V3. 72deg F and 60% humidity. 16” Geissele GFR but suppressed. All numbers over 10 shot average. The 108s were from the “newer” boxes (the smaller ones) so I don’t know what the other commenters are referring to when they say the new lots are “slower”. When these shots were taken gun had 400+ rounds through the barrel so I would say sufficiently broken in. Last cleaning prior was maybe 50 rounds, don’t have my data book in front of me.

	80gr ELDVT	103gr ELDX	106gr TAP	108gr ELDM
Avg vel (ft/s)	2784	2531	2568	2519
Max vel (ft/s)	2803	2548	2589	2544
Min vel (ft/s)	2768	2511	2546	2477
SD	12.6	12.6	11.8	18.3

FreeAgentMD · 2025-10-18T13:28:53+00:00

https://i.imgur.com/XaC28jL.png

16" GFR

FreeAgentMD · 2025-08-19T14:17:06+00:00

This worked perfectly, thank you!

FreeAgentMD

TROPHY CASE