The Zero Check Thread

[veitnamcam]

Very alarming "clean bore" shift on that 6.5PRC. Is that repeatable?

I don't know yet.......it's the first time I have cleaned that barrel.
But yeah it's wild considering it's shooting once fouled.
Needs more data....

[T.FOYE]

This March is a good scope. It does not get babied and it is reliable. @Tentman the zero check above is 10rd all hitting within a 0.5MOA radius of POA - so 10x hits on a 1MOA target.
Attachment 276700


Across the last 40 rounds of zero check - 39 have hit inside a 1MOA circle centred on POA. 1 has not. That's still not 100%....

I'm inspired by the state of your turrets lol. I've put my beloved march on my hunting 308 (tikka 16"). Tho I'm not game heading north of 16lbs of torque on those scope top screws.
I'm just using weaver branded skeletal rings but I did notice a huge difference in boresight POI when I thumbsucked the rail bolts. When I used the fat wrench and set them to 45lbs I noticed I was now pointing right at the centre click (exactly 14mils left and right).

[gimp]

6GT Remington 700
108gr Berger Elite Hunter @ 2742fps
March 3-24x52
Talley ultralights aligned & torqued to 20in/lb

Zeroed a while back, seems to be holding for now

[Tahr]

Savage Lightweight. Timney replacement trigger. Hardy 1:8 barrel sporter contour. Factory bedding.
Zeiss HD5 3-15 - circa 20 years old.

Rifle unused for 12 weeks. WD40 in barrel. One pass with dry pull through before first group today.

Backlanz bipod. Hard wooden bench. Bipod probably slightly loaded but not consciously. Rear bag. Left hand squeezing rear bag.

First, 5 shots. 62 grn Norma handholds. First shot post clean bottom right, other 4 after the fouling shot.



Straight on to 5 x 60 grn Hammer Hunter handholds.



Result: Has held zero inside 1.5moa for over a year without adjustment. Several hundred shots.
Sometimes my shooting has been a bit shitty (1.5moa) and sometimes Ive surprised myself like today with the Hammers.

Over all this is a hell of a reliable platform. It shoots 7 different bullet types and weights into the same zero. Watch out for it in my estate sale.

[25/08 IMP]

Savage Lightweight. Timney replacement trigger. Hardy 1:8 barrel sporter contour. Factory bedding.
Zeiss HD5 3-15 - circa 20 years old.

Rifle unused for 12 weeks. WD40 in barrel. One pass with dry pull through before first group today.

Backlanz bipod. Hard wooden bench. Bipod probably slightly loaded but not consciously. Rear bag. Left hand squeezing rear bag.

First, 5 shots. 62 grn Norma handholds. First shot post clean bottom right, other 4 after the fouling shot.

Attachment 279219

Straight on to 5 x 60 grn Hammer Hunter handholds.

Attachment 279220

Result: Has held zero inside 1.5moa for over a year without adjustment. Several hundred shots.
Sometimes my shooting has been a bit shitty (1.5moa) and sometimes Ive surprised myself like today with the Hammers.

Over all this is a hell of a reliable platform. It shoots 7 different bullet types and weights into the same zero. Watch out for it in my estate sale.

That's years away yet young fella

Sent from my CPH2531 using Tapatalk

[Hunter_Nick]

- Date: 20 AUG 25
- Range: 100m
- Rifle: Tikka T3x superlite 308 win
- Optic: Swarovski Z3 3-10x42 BRX reticle
- Mounts: Sportsmatch dovetail rings
- Ammunition: 168gr ELD-M, Norma case, 44gr Varget.
- Context: First shots from new rifle. Full 22.4” barrel, Hausken JD151 suppressor. Tikka vertical grip.
Shot prone over front and rear sandbags. 3x3 shots +1. Cooling between each lot of three- stand up and walk around.

[earplay]

Checked again at the range tonight. Since last check, two hunts (five deer ) and a clean.
First 5 shots on paper at 100m.

Howa 1500 7mm08 in plastic stock- bedded, trigger lightened
Leupold VX-freedom 3-9 x40 in Talley rings
162 ELDM handload.
Adjusted one click left after this.

[gimp]

Checked again at the range tonight. Since last check, two hunts (five deer ) and a clean.
First 5 shots on paper at 100m.

Howa 1500 7mm08 in plastic stock- bedded, trigger lightened
Leupold VX-freedom 3-9 x40 in Talley rings
162 ELDM handload.
Adjusted one click left after this.

Attachment 283254

Had you made any adjustments since this initial zero?

Result of my initial zero for later reference. I'm using an 'infamous' Leupold now, so will interesting to see what happens over time.

Details - 2nd hand Leupold VX-freedom 3-9 scope with CDS, Talley lightweight mounts on Howa 1500. (Group was shot in two lots of five on a different target, and manually overlaid hence the dots).

Attachment 275565

[earplay]

I believe one click down. Initial zero was off a wooden bench and subsequent two were off a concrete bench. Not sure if that's a factor, as well as potential parallax error. I feel comfortable that it's not moving enough (or at all) to warrant concern for my intended use anyway. I also shot a subsequent 5 shot group which measured 1.2moa so I think it's all within the precision window for this setup.

[Shamus_]

- Date: 20 AUG 25
- Range: 100m
- Rifle: Tikka T3x superlite 308 win
- Optic: Swarovski Z3 3-10x42 BRX reticle
- Mounts: Sportsmatch dovetail rings
- Ammunition: 168gr ELD-M, Norma case, 44gr Varget.
- Context: First shots from new rifle. Full 22.4” barrel, Hausken JD151 suppressor. Tikka vertical grip.
Shot prone over front and rear sandbags. 3x3 shots +1. Cooling between each lot of three- stand up and walk around.

Attachment 282063

Nice

[Beavis]

- Today
- 100m
- UTAS Straight Pull AR15 w/newish White Oak Armament barrel
- 2.5-10x32 NXS in Mil
- Aero Precision 30mm Ultralight Mount, base and rings torqued to 20in/lb
- 73gr ELD loaded into PMC brass full of 2208

4th 10 shot group with this load and getting a consistent mean radius so happy to run with it. Adjusted .2 down and fired 5. I felt it might still be a smidge low, so, came up one click and called it a day due to running low on the ammo I will need tomorrow.

I will fire another 10 shot group when I get back to the range to check if it moves at all. My expectation is the vertical should be no more than a click off up or down, and I think it will be obvious if there is any left or right movement.

Attachment 271572

Attachment 271573

This set up shat the bed big time in terms of holding zero this weekend past. I need to shoot it off of the bench in the same way I zeroed it to rule out shooter error, and whether attaching an Arca rail and a Ckyepod to the handguard resulted in a POI shift.

It was used to shoot a couple of fallow at 300m after the above zeroing session, and it shot predictably. It was handled roughly getting a deer out of a gut, and on quad bikes since, so if it is something mechanical and not just me, I will need to comb over what has happened.

[gimp]

This set up shat the bed big time in terms of holding zero this weekend past. I need to shoot it off of the bench in the same way I zeroed it to rule out shooter error, and whether attaching an Arca rail and a Ckyepod to the handguard resulted in a POI shift.

It was used to shoot a couple of fallow at 300m after the above zeroing session, and it shot predictably. It was handled roughly getting a deer out of a gut, and on quad bikes since, so if it is something mechanical and not just me, I will need to comb over what has happened.

Interested to see what it looks like on paper

[gimp]

Checked again today. Shot 129 goats on a trip the week before last. Been bounced around a bit and whatnot. Still holding zero within 0.1MRAD. The line is a shit aiming point
Attachment 276699

Hadn't checked recently. Banged 5 through it today. Based on prior data, no evidence of a shift yet.

[TeRei]

Savage Lightweight. Timney replacement trigger. Hardy 1:8 barrel sporter contour. Factory bedding.
Zeiss HD5 3-15 - circa 20 years old.

Rifle unused for 12 weeks. WD40 in barrel. One pass with dry pull through before first group today.

Backlanz bipod. Hard wooden bench. Bipod probably slightly loaded but not consciously. Rear bag. Left hand squeezing rear bag.

First, 5 shots. 62 grn Norma handholds. First shot post clean bottom right, other 4 after the fouling shot.

Attachment 279219

Straight on to 5 x 60 grn Hammer Hunter handholds.

Attachment 279220

Result: Has held zero inside 1.5moa for over a year without adjustment. Several hundred shots.
Sometimes my shooting has been a bit shitty (1.5moa) and sometimes Ive surprised myself like today with the Hammers.

Over all this is a hell of a reliable platform. It shoots 7 different bullet types and weights into the same zero. Watch out for it in my estate sale.

The bottom group is very tidy. Podium.

[Beavis]

This set up shat the bed big time in terms of holding zero this weekend past. I need to shoot it off of the bench in the same way I zeroed it to rule out shooter error, and whether attaching an Arca rail and a Ckyepod to the handguard resulted in a POI shift.

It was used to shoot a couple of fallow at 300m after the above zeroing session, and it shot predictably. It was handled roughly getting a deer out of a gut, and on quad bikes since, so if it is something mechanical and not just me, I will need to comb over what has happened.

Probably safe to assume my issue was related to fundamentals, or parallax or something. Safe to assume my zero hasn't "moved".

Final 5 sighters on 29/03/2025



A few hunting trips between drinks, including a couple weekends ago when it seemed my rifle was off.

10 shot zero check today 21/09/25



No changes or adjustments. Zero checked off front and rear bag, on a concrete bench, same as I originally zeroed it.

I could bring it up .1 mil I guess