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Help Request with 1. OCW results .300 PRC - does not make sense to me

Hi there guys,
I don't want to bother you with long texts (and hopefully question itself, in case my brain doesn't get it and it's something what's obvious in general...)...so I did it this way (hopefully it's not gonna be a bad idea) - the info I think is important is included on the pictures. I do know that my writing is kinda dysgraphic and horrible tho and I apologize for that. I'm a surgeon and it's common issue amongst us, .... anyways, if it isn't readable/understandable in general, I will be more than happy to write everything down here :)

It's basically the first proper OCW I did for my new Bergaga, I've never been shooting it with factory ammo as it hasn't been available in Czechia since .300 PRC was released to the public. I applied general rules of reloading, load devs. and Berger advices aboout loading VLD pills, and overall procedure/modification of the OCW test itself is as described in this thread (as I reload mainly 6,5 CM) https://www.65creedmoor.com/index.php?topic=6774.0 .

Thoughts, notes, changes - as I told before, I used the main idea and concept, not every single detail which I assumed it's not relevant (Gr increments, number of charge steps etc.), but I'm quite confident I did it right either when planning, reloading and shooting itself,.... Some differences and misc., so you musn't mess with metric vs imperial etc. - barrel cooling after each 7-string of shots (no one minute waiting between shots), shooting (and zeroing) distance 109.3 yards, CBTO 2.89 INCH (0,03' jump),.RS 76 - Reload Swiss 76 - swiss powder, common in europe, and most important - it's on stock all the time at almost every store in our lil country. Closest to H1000 from what I've learnt so far / some say it's just european version of RL25 named differently for US/EU markets, who knows...Last but not least, please be nice about the scope :D, but tbh it's not temporary or some real money issue thing, these optics just work for me on different rifles and cals.

BUT, to the point again (sorry)....I'd be very glad for any kind of objective and possible explanation for this from you guys, as here are many of pro's and supportive folks. I reload for one year, and neither don't shoot any competitions, or think I'm particularily good shooter, it's just my biggest hobby which I love. Question is - What could be the reason for consistent vertical drop, obvious on targets 2, 3, 4 and 5 of last, third, string (marked on targets). When 1. hit of that string doesn't seem weird and the last, 7. is totally of the chain - here I suppose it's just far from node. Sighter on the top left is due to fact I didn't make enough sighters/foulers I thought I'd have needed. Ofc there is considerable shooter's error, I do know that, but still, I'm not sure how (or if it's possible) to interpret the results. And if yes, how would you proceeed now?
Thanks a lot in advance and take care!
T.

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WATCH: Harrowing footage of armored gunman being taken down by Texas police before Houston Veteran's Day Parade. Possible terrorist targeting parade.

HOUSTON, TEXAS, NOVEMBER 11, 2021

Two days prior to the culmination of this incident, Elliot Lewis, who had an extensive criminal history, pulled up outside the Harris County Precinct 4 stationhouse and opened fire with a rifle, sending a barrage of bullets through the unoccupied lobby. On November 11, just before the Houston Veteran's Day Parade was about to begin, deputies spotted the same sedan that had been captured on the stationhouse's camera and a high speed pursuit began.

After a while, a SWAT vehicle blocked Lewis' sedan and the suspect got out, pointing his rifle directly at approaching officers. Deputies opened fire, striking Lewis multiple times. At one point, officers on both sides of the suspect were engaged in a crossfire. No cops were hit. Lewis was pronounced dead on the scene. He was also found to be wearing body armor.

VIDEO:

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NEWS LINK:


Given the events of the past 2 months surrounding the Rittenhouse trial and this suspect's clear targeting of law enforcement, it can be assumed that the Houston Veteran's Day Parade had been a target on that day but Lewis was neutralized before he could make it there.

Snipers in SHTF Situation

The producer brings up some interesting points but I think that he’s probably incorrect on some points.

First, I wouldn’t necessarily call the shooter that he’s describing a true sniper. This person would basically a murderous thief. A true sniper wouldn’t want to expose themself after taking a shot to steal the victim’s equipment.

I could see groups of marauders ambushing targets or invading various homes, farms or enclaves.

He’s correct that the killer in the scenario that he’s describing would now be a high priority target for the victims’ family and friends. I would also go out on a limb and say that the killer would probably have to know the terrain and area.

With that said, the killer would probably know their victims and the neighbors might start a search and destroy mission in their own back yards. Some innocent people might be falsely accused as there won’t be any recognition often bill of rights.

So what does everyone else think?

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D-Dit D-Dit D-Dit. Now for today’s news

Low point of the day, blm says they will support jessie smollett despite overwhelming evidence that he staged the fake attack because he is the victim of white supremacy.

Even lower point, the arsonist who burned down the Foxnews’ Christmas tree was released without bail.

Despite what seemed to be a record low point, jan scaki, presidential news spokesman claims that the reason for the smash and grab robberies that are overwhelming retailers in many, many major cities across the nation is caused by….Can’t make this shit up…Covid

140 Berger Hybrids jump...How far?

I have 1,400 Berger 140gr Hybrids sitting on my bench and I am considering dump them on the PX...for everyone else to enjoy

I'm spending too much time schlepping back and forth to the range (and not having fun). Before I give up...

Questions:
How far others are jumping 140 Hybrids?
Assuming this Hornady OAL gauge was correct, my CBTO is 2.230. Tested 12 to 34 thous off. Many articles saying "ah, just start at 20 thou and you're good". Is there any empirical data (your loads) that suggest I should be going 40, 50 60, 70 80 (???) thous off?

What is impact on seating depth on velocity/SD/accuracy? My SD are not consistent session to session even with the same charge and same depth. Groups are also inconsistent. I can put 3 in a hole one session then 20 minutes later have a scatter graph. Could this inconsistency be a result of me not jumping the Hybrids far enough?

Would my short jump invalidate my velocity testing? When I did my initial velocity testing (40.8-42.5gr) I sat the bullets at 20 thous (CBTO 2.210). If Berger Hybrids do prefer a bigger jump in my barrel, would I need to re-do my velocity testing?


Here is my setup:
  • AI/AX
  • 26in WinTac Bartlein
  • 140gr Hybrids
  • 41.6gr H4350 >>> three ladder tests suggested node btw 41.5-41.7 and I went with 41.6....
  • CCI 200 LRP
  • Hornady Brass
  • Benchsource annealed
  • .264 mandrel expander
  • .289 Neck bushing

Here are my results form yesterday's 100 yard session:
Observations:
1) Nothing clearly stands out as consistently accurate
2) I have #5 and #6 where a group with one that is completely off and random >>> SD is aweful on both
3) Vertical stringing in #1 12 thous and #3 20 thous

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  • Poll
Rifle Scopes your opinions on mid tier optics like XTR3 vs XRS3/DMR3 vs Cronus Gen2

best scope $1k-1500

  • Bushnell DMR3

    Votes: 19 13.0%
  • Bushnell XRS3

    Votes: 30 20.5%
  • Burris XTR3

    Votes: 47 32.2%
  • Athlon Cronus gen 2

    Votes: 31 21.2%
  • Leupold Mark 4

    Votes: 0 0.0%
  • Vortex Razor / Viper

    Votes: 12 8.2%
  • Other....

    Votes: 7 4.8%

Hello Hide,

I'm looking to upgrade my current scope. i have a NF 3.5-15x50mm i got around 2008 timeframe. its worked great and now its time for an upgrade.
Ive seen a lot of posts about top tier ZCO vs TT vs S&B vs NF but i haven't seen posts about optics in the $1000-1500 range.

i have seen Bushnell DMR3/XRS3, Burris XTR3, and Athlon Cronus gen 2's for $1200 +/- 100.

my current consideration is the XRS3 or XTR3. i can get either for the same price.

Thank you,
Chuck

Edited to add my info below
Please consider including the following when asking the SH community what scope we'd recommend for you:
  • What is the platform for the scope? Semi-Auto AR-15 / AR-10
  • What cartridge are you shooting? 223, 6.5cm
  • What is your intended use for the scope? Benchrest, Hunting, Target, Steel, gas gun challenges
  • What type of conditions will you typically shoot in? Daylight, Lowlight
  • What are the typical distances you intend to shoot? 75-1500 yds. i would like to hit 1760
  • Are there any specific specifications you would like? FFP, tree reticle, 56mm objective, focus below 50 yds, mil, Huge FoV
  • What is the price range you can afford? $500-$1300

Ballistics calculators don't match real world observation

So I'm relatively new to long range shooting. I have a Springfield Waypoint in 6.5 CM, and shooting a hand load - Hornady 143 gr ELD-X with 41.5 grains of H4350 powder. The Hornady manual states muzzle velocity at 2750, and I've chrono'd it with a Magnetospeed v3 at ~2720. When I this load into any ballistic calculator (including my rangefinding binos), they all come out pretty close in terms of come up: ~4.0 MOA at 300 yards and ~6.7 MOA at 400 (just to give a couple examples). Problem is both times I've shot this week, those calculations are significantly off. At 300 yards I was missing a swinging target (12" steel plate) completely. I dropped down to a 3.0 MOA come up and didn't miss. I also got a target out at 300 yards and dialing 3.0 MOA, put 10 rounds in the 9 ring (about 8" in diameter on the target I was using). Tried at 400 and was missing another 12" steel target using the suggested elevation from ballistics software (6.7 MOA). Dropped to 5.5 and was spot on.

I feel like I must be doing something wrong, as I can't imagine every calculator is wrong. Thought that it might be the Magnetospeed and the FPS was way low; when I bump the muzzle velocity to 3000 FPS, the number the calculators give me are almost spot on to the DOPE I established when actually shooting. Any thoughts would be appreciated.

Home Alone is the best Christmas movie of all time

I've literally watched this movie five times within the last three weeks. It gets better every time and I appreciate subtle things about it that I didn't previously notice. I truly think this movie is a masterpiece. The acting by Culkin, Pesci, and Stern really couldn't have been any better.

And the John Williams score really brings it all together in a very sentimental way.

Planning Gun Room Build, Electrical Question

In the process of planning my gun room build. The room is approx 50 feet from the service panel and will be 15x20 or close to it once completed.. I would like to run a 20A circuit for outlets in the room. I was looking at running a 12-2 wire for this circuit but research has been questioning if the is large enough given the distance. Any electricians on here? I have some time before wiring as removing floor drains and having the concrete floor leveled is the first priority.