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1k swinger hits – AR-15 6ARC

Development Log, Range Days 6 hours ago

Its been fun riding the hell out of this Poverty Pony to the land beyond 750yds. Now I have dope, ammo, equipment, and experience to shoot the AR-15 platform from 100-1000 yards with no scope dialing.

Started off with zeroing the rifle at 100 with the yellow box of BTTs @2500. These were plinker rounds and nothing special. At 100/200/300 hits were no problem tried a couple shots at 500 but wasn’t 100% on that and it was near the buzzer so not bad for first round.

Next buzzer round(about 30 mins) I just single fed rounds to Fire Form – shooting them at 2/3/500 pretty easily – These are slow rounds @2400. Taking slow shots on bags with the new glass is where I really settled in. The glass was crisp and the side focus was nice, the dials are nice, the mount seems solid, all in all the glass choice is greenlighted – All the money spent where you want it.

Then started dialing in elevation to get and test the 100-1000 hold theory. So The theory is just dial for 600 yd zero and then use hold under/overs so that there is no dialing. At 100 sighting plate, dialed -6MOA and test fired = 6” higher. This confirmed my dialing so I dialed in a total of -19MOA and took another test shot confirming the elevation on the 100 yd plate.

Then went back with the Slow and Low ammo @2500, and confirmed dope on the short range 1/2/3/500. I was able to hit some of the smaller swingers at 500 even the next to smallest swinger a couple times. One thing I DID notice is that when using the Hold Unders is that the windage is not marked on the upper part of the reticle like it is on the lower part of the reticle. when I was having to hold -2MOA wind and 2MOA elevation, it was a tad trying. Still I think that is a bit of nitpicking overall the new glass made hits easy. I finished the buzzer round and prepped for moving to the long range.

There was a little dialing in zero for 600 and the wind, but once that is settled, the holds worked GREAT! NO DIALING! I was able to make hits at 600 and 750.

I tried for 1k with the slow and low ammo a couple times, at 27MOA I was aiming a bit low I believe but I wasn’t getting confirmed hit so I stopped. I was holding above the “O” in MOA in the reticle. In retrospect, I believe I could make hits holding 25MOA – It appears that Strelock Pro may have lowered the velocity due to temp algorithm a bit and cause more MOA than needed.

There were some other people shooting the plates and the monitors were off, making confirmation of hits a bit more challenging. Again, the glass here made it able to spot shots easier than before. I didn’t even bring my spotting scope.

With the afternoon range day-light starting to run out, I figured this was my shot to try for 1k so broke out the good Fast ammo and and confirmed 600 yd zero. 750 seemed to be a tad less hold than I had estimated and I then tried 1k on the plate and got a hit, thus confirming holds. Next round of the buzzer with a clean paint on 1k I was able to sprinkle ~ 10 out of 15 shots on the large circle plate and even a few shots on the smaller plate as well. I just finished shooting all the ammo I had.

At the end of the day I Annealed 427 brass ready for the good stuff! Goodbye 223! Made some new Laminated Load cards.

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Range Daze

6ARC Load Development, AmmoSmith - Reloading Tips and Examples, Range Days April 26, 2021

I had planned to go Turkey Hunting in the backwoods of Alabama Saturday morning. That got delayed and I ended up riding around with my old friend in the Miata with the top off. Ripping through the gears on the back country roads with new tires on the rear brings grins ear to ear. As 7 yr old kid packed in the back seat of an old blue Ford Escort with my little sister, I had always dreamed of driving a red sports car to Grandmas house – finally happened.

In addition to breaking the 870 down so it would fit in the trunk of the Miata, I also brought the 6mmARC, the Ruger 10″ 22s, and the CZs (ZomBullShadow, SP-01 Racegun, 97B mostly stock). I had planned to also do some target shooting and test some new loads in addition to turkey hunting. – all the gear packed to the gills in the Nimble Ninja (a common occurrence). I decided to stop in just after lunch at Bob Gibson’s Original BBQ house and with Swann Creek WMA range was only 15mins detour on the way back home made it an easy decision.

It was perfect weather, and I was shocked to see the range not even half as full as last time on a Saturday. Parked at the 100 yd pavilion and signed in. I had been suffering a putrid cough and loss of voice – shouldn’t be COVID as I can still smell and taste plenty, but it wasn’t fun – I braved through it and kept my distance.

First up, was the 6mmARC, confirming my “Jam the Lands” load, which worked very well to fire form about 20 cases of converted 6.5 Grendel Basic Brass. Worked great, I thought the single feeding would be an issue but it wasn’t bad at all. A friend happened to be there with his LabRadar, which brings up a question – aren’t all people with Lab Radars considered friends?

We confirmed the velocity of the of my settled load of Leverloution over 105 Bergers to be ~2550fps. I let him shoot a mag and try the rifle and got video using the ATN. Chased down all brass and it looked good. So next is loading a single case until the neck is split (4-8 times will be my guess). Then try same test using the annealer after each firing.

Next up was the 10″ Rugers. First was the Black Grand-Mamba (scoped). I sighted in at 50 yards and made some adjustments to the scope. It shot very well but then I noticed a bit of slop that I thought was coming from the push button release, but it was actually the scope mount coming loose off the receiver ( I don’t think I locktighted them). Next up was my Bond gun – the Stainless MKII 10″ barrel version with stock trigger and gold Vol Bolt.

The Deuces…. Ohhhhh… Both 10″ 22 pistols with Gold Volquatsen bolt. Black one has Vol Trigger.

It shot good but did have some light strikes which the MK4 finished no problem. I started shooting at small items on the 100yd berm. I was Benched and bagged so it wasn’t very difficult to get the berm targets to dance around a bit. Mostly close/about 2″ off, but also some direct hits.

I was holding the front post about 1/8″ high off the rear sight and using CCI SV factory 2nds. I did notice that hits on self healing plastic targets at this distance did not make the target move very much/at all.

Lastly was the CZ pistols, which the 97 ruled the day. I started with the ZomBullShadow, and the 90gn ammo I had just made. It did not have enough power to cycle the gun.

Switched to new Berrys 115 load and they would BARELY cycle the gun and would ONLY cycle with firm grip (great example of limp wristing).

I DID get one of the bullets to jam the action up tight. looks like the offending round did not get sized or plunked. Bagged the pistol and swiched to SP-01. Quickly realized that my dot battery was out so switched to the 97. 50 roudns of the Standard RN loads and it shot great.

Loads tested:

9mm 90gn Hornady hollow points with nickel cases. They fired fine, shot like a 22, but didn’t have enough oomph to fully work the slide. This resulted in the case being held in by the extractor and not even hitting the Ejectorm just stayed along for the entire ride, keeping perpendicular to the slide, not picking up the next round and jamming the gun with the brass hitting the breechface just a tad off center. But, the highest load that I used I believe DID work the slide, and I remember checking the brass and it seemed OK, cratered, but not pierced – so need to finish making those (~150 bullets) at highest TESTed powder charge and do accuracy/function testing with the Ruger PC9.

The Berrys 115 gn seemed to run GREAT in the ZomBullShadow – at first. Then I got a round that hadn’t been sized at the base and it jammed the gun. I did get to shoot about 3 mags of them and they ran great. The round that locked the gun probably didn’t get sized properly/all the way(short stroking the press when getting case feed adjustements setup maybe) Either way need to plunk all rounds for the gun. The gun was bagged and dis assembled at home, looks GTG now.

Next up was the SP-01 Racegun! – This gun Would have ran great BUT, I left the Dot ON and the battery was dead. DANG!

The 97 came out and reigned supreme on that day. 4 mags shot GREAT with the stock 45 loads I had made (Berrys 230RN over Alliant Power Pistol). Called that a day and packed up to head home.

Other notes and observances: There was one 9mm round that was right on the edge of performing/running the slide. I remember limp writing one of the dev loads and the gun would jam – firm grip it would run. I went back and forth a few times to confirm. I have had a couple of light development loads exhibit this issue before, but not quite this evident. It was actually kind of cool, to be able to make the gun jam jut by having a slightly softer grip, but I don’t ever want to load action match rounds on that hair line verge of not working, better to powder up!

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6mmARC Brass Forming From Straightwall Blanks

6ARC Load Development, Processing Tips April 13, 2021

Disclaimer: do your own research and use common sense when reloading. I am not responsible for your results. Don’t try this at home or at home office either…

Here are the steps that worked for me. I wouldn’t even attempt this without a great annealer. That thing is worth its weight in brass.

Scope footage: 1/2/3/500 yds – watch the scope tap dance like Danny K…
https://youtu.be/zjgycnxhAAQ

  1. Use Pilot 01 for all annealing and RCBS #3 shell holder – the H45 was too tight and the other RCBS was too loose letting cases slip and fall in the annealer to be turned upside down and picked out. RCBS#3 just right.
  2. Analyze to find Annealing Code A:
    • Took me a sec to get the hang of the Annealer again which menu to get to in order to do the analyze.
    • Annealing Code A LOGGED: 0116
  3. Anneal all brass using Annealing Code #A – this was very quick ~1 sec each.
  4. Lube – lanolin mix in bag and did find that swabbing the interior casemouth helped quite a bit when the expander ball is coming back through.
  5. Size (single pass) – Shoulder Bump noted – 3.152″ (taken/matched from another previously fired case) with H comparator on shoulder and calipers. BUT keep in mind shoulder is not fully formed yet so that reading is close but not exact. THE heavy duty RCBS press at the range was defiantly a help and it did size smoothly but did take some effort.
  6. Anneal to relive stress after sizing. Discussed with local wildcatter and and decided to do another round of annealing. Analyzed to find Annealing Code B LOGGED: 0149
  7. Anneal all brass using Annealing Code #B
  8. Trim – With normal brass, the trimmer trims down to 1.485” but it was leaving the new brass at 1.495” with is /5 thou too long. So I had to adjust and then thinking about it – most likely due to shoulder variation.
  9. Champher/deburr – used the hand tool
  10. Clean (if needed – blow dry chips away)
  11. Prime – RCBS hand primer
  12. Drop powder – 25.0 Gns of W748 – 6 test rounds
  13. Shot bullets – Failure to Fire – no primer indentations at all.
  14. Local wildcatter advised on seating the bullets long to make sure the casehead was up against the breech so that the firing pin would activate. Seat bullets (jammed) too long to load in mag, need a sled mag. Single Feeding jammed lands worked and rang plate ~ 6″ low @100yds (I didn’t care about accuracy just that it fire formed)
  15. Fire Form Results – WORKED for 6 cases will test more – looks good. Can still see some faint stretch marks on the brass in the shoulder/neck area but seems GTG.
  16. Dissection Results
  17. Load repeatedly to see how many firings it will take (> 4 = grins).
  18. After Fire Forming, Analyze to find final Annealing Code C. This code will be used after every firing until brass is toasted.
  19. Next Batch of processed brass will be using a slightly different die setup.
    1. Remove the decapping pin from RCBS SB 6ARC die
    2. size lubed case in single pass
    3. then use Sinclair mandrel 6mm dies to form necks – less stress on the necks
Headstamp ideas welcomed!

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6mmARC Chrono Results Berger 105 VLDT/BTTT /LeverLoution

6ARC Load Development, AmmoSmith - Reloading Tips and Examples March 10, 2021

Chrono Results from the Strategic Edge Range 3/7/2021

These bullets are very similar, the VLDT is more pointy(spensive) and the BTT is more traditional(cheaper). The original load with Hybrid Target have been hard to find, hence using these bullets.

Chrono results are below. It looks like the lower charge weights are the most accurate, so its a toss up. I guess close range use the lower velocity with smaller groups, but on the longer range, may be better off with the higher charge weights that give less drop/drift but also smaller groups at range due to vertical stringing that comes from ES and SD.

Berger 105 VLD Target – 3 round groups to conserver components

Second Grouping…

Berger 105 BT Target

105 BTT and W748 coming up next! Maybe throw in some CFE 223 as well.

262 total views, 1 today

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