Most inaccurate rifle I've shot in a long time, and it's a head-scratcher.

Jeez guys....

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Not sure the “Jeez guys” added to the helpfulness your post…

But in the end it *was* helpful.

Lol.
 
My fault with the load data. Totally got the powder wrong when typing.

The ring base issue is a non-issue as it is just a fancy base that most people aren't familiar with.

I've never seen one before.

The rifle and equipment is like Formula 1 racing. If you grew up drag racing, then a lot of the equipment and processes is confusing.
 
Is it just me, or does the forward scope ring look poorly attached to the base.
That's a Leupould offset ring. 1710787779892.png

On top of the other reasons as for why OP might be having trouble, what is the trigger weight on the rifle? I upgraded the trigger on my 77/22 Hornet and found that any lighter than 1.25 pounds caused my consistency to go out the window. Perhaps the trigger is too light for what you can do consistently?
 
In the video, I show the trigger pull at just over 1lb.

I'm getting a very consistent and confident sight picture when the trigger is touched. The crosshairs are perfectly centered on the bullseye and at 20x at 100yds, it is clear as day where the bullet should be going. I'm hoping that addressing the variation in ammo and the loose scope ring screws will get things back to normal.
 
The rings/bases may not be the problem, but you can do better in 2024. Those rings were popular years ago and were designed to be used on rifles where the scope mounting holes were drilled incorrectly. They allow you to align the scope with the barrel in that case. That used to be a common problem, but not anymore. They are actually one of the weaker designs, especially with extension rings.

I'm really just guessing too, but a couple of other guys pointed out that the barrel may just be shot out from your dad's use. That is my 1st thought. Some of the fast 6.5's will shoot a barrel out in a few hundred rounds.
 
The ring base issue is a non-issue as it is just a fancy base that most people aren't familiar with

It is kind of an odd setup for a target gun to be running. Like JMR pointed out they allow for horizontal adjustment, which shouldn't be necessary on a purpose-built Target rifle. I would guess your dad used them specifically because he liked those rings, or they happened to be what he had on hand when he put together the gun the first time and it shot so well that he didn't want to change it.
The scope strikes me as a similar choice also.

All in all, it's an interesting rig, I hope you get it shooting the way you want!

....while im inclined to look hard at the barrel..... I do agree with the other guys that checking the optics mounts is probably the correct first step just cuz it action screw torque are the easiest.
 
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Ya know..... Are you sure those are all the same loading? I was just looking at the video again and noticed that he has 7828, 4831, an rl22 (seen the rl22 earlier and the drop numbers missed the 7828) as well as their charge weights listed on his note.

Just from my experience in other cartridges, The numbers he lists would likely give very close to the same velocity.
 
Is it just me, or does the forward scope ring look poorly attached to the base.
I agree! It looks like the scope mount was set for a different rifle. Make sure it's VERY firmly connected, because it looks like it's just not right!!!
 
I have a 32" monitor, saved the pic and zoomed in as far as I could and still couldn't tell 100%. Didn't watch the video.
 
If you pull the metal out of the stock and put a chamber plug in the chamber then fill the bore with Shooters Choice Copper Solvent, let it sit for 7 full days, all the copper should bronze brush out. If not repeat. When back to bright steel, do a barrel break in. I use a Sweet Shooter wet bore break in.
I shoot the 6.5x06s and the 6.5x284 has the same case capacity. So with a good action, 26"barrel is quite capable of duplicating a 264 WM with a 24" factory barrel plus shooting sub 1/2"groups with full prepared brass that is capacity sorted.
I have a couple sets of the off set rings for short body scopes to move the eye relief. That that one picture might be an illusion created by the picture.

There you go, on your new post.
 
Agree with doing a full and complete copper de foul on your bore. I’m happy to hear your accuracy is headed in the right direction!
 
Your music in the video is very sad...

243winxb nailed it with his photos...a bipod on a pad is extremely suboptimal plus it's likely you were shooting a series of experimental rounds rather than his dialed in load.
I believe shooting on a solid rest with a rear bag and the dialed in load will get you where you should be. I'm really curious what the muzzle velocity is with a 30" barrel and a grain over max produces.
 
How old are / is the reloaded ammo ?

I ask, because the bullets "might" be adhering to the brass neck kinda firmly... I have seen "older" ammo shot better after seating the bullet just slightly deeper, and breaking that seal.

FWIW, that was with some .308 ammo.

Just a thought.
 
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5-shot group with bipod, dialed in loads, and everything tightened up.

View attachment 1200180

2nd 5-shot group after removing bipod shooting on bags.

View attachment 1200181
Using proper targets for precision shooting might help; aim small, miss small. Nevertheless, if this is 100 yards, that looks like about 1.5 MOA with 5 shots, closer to 2 MOA with 10 shots (what really counts). This would be acceptable with an AR carbine and ball ammo, not so much with a heavy bolt gun and handloads. I wouldn't even accept that from a big game rifle. I've got $300 Mossberg Patriots that hover just over MOA for 10 shots @100 yards with factory hunting ammo.
 
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Using proper targets for precision shooting might help; aim small, miss small. Nevertheless, if this is 100 yards, that looks like about 1.5 MOA with 5 shots, closer to 2 MOA with 10 shots (what really counts). This would be acceptable with an AR carbine and ball ammo, not so much with a heavy bolt gun and handloads. I wouldn't even accept that from a big game rifle. I've got $300 Mossberg Patriots that hover just over MOA for 10 shots @100 yards with factory hunting ammo.
I think you misunderstood, and it is completely my fault since I was in a hurry before work and didn't bother to make the scope adjustments and fire two separate groups on different targets.

The first group was fired with everything tightened up and the actual match ammo identified, which is the 51gr of 4831 and 140gr Sierra Match Kings using Federal 210 primers. I still fired the rifle using the bipod and got just over an inch group...

sav121.jpg 1stgroup.jpg

I then removed the bipod and used only a sandbag/shot bag rest and the groups got even tighter, down to about 5/8"...

sav122.jpg 2ndgroup.jpg

So, the best group so far is 5/8" at 100 yds. Great for a hunting rifle, but not great for an F-Class rifle, AFAIK. Varminator may want to chime in with what is expected accuracy. My expectations are 1/2 MOA at 600yds, like my brother's Ridgeline hunting rifle in 6.5 PRC.

Updated video...

 
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Is it just me, or does the forward scope ring look poorly attached to the base.
That jumped-out upon seeing the photo. How could anyone who knows anything about rifles/scopes do that? It looks like the person just put the scope on the rifle to provide safe storage for it in a gun cabinet. Only a nincompoop would install a scope like that and think it would work.
 
Trey, you have a lot of stuff piled up on that bench. How stable is it? I'm betting you could trim another 1/4" off those groups if you set up on the ground with your bags. Just a thought!!
 
Your music in the video is very sad...

243winxb nailed it with his photos...a bipod on a pad is extremely suboptimal plus it's likely you were shooting a series of experimental rounds rather than his dialed in load.
I believe shooting on a solid rest with a rear bag and the dialed in load will get you where you should be. I'm really curious what the muzzle velocity is with a 30" barrel and a grain over max produces.
MAP on the 6.5-284 is unusually low at 58k. Capacity between it and the 6.5PRC (had both at the same time and kept the 6.5-284) are pretty close from what i remember, so run marginally harder id expect 3000-3100 wouldnt be a stretch.

I took my 24" to 2950 with 143s comfortably.
 
The ammo may have become stuck in the cases, causing variation in pressure. Whenever I want to shoot older reloads, I run them through the seating die, just cracking any seal that may have formed. The accuracy returns!!! Good luck!
 
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