I can shoot a five shot group and the first shot is always high. I can let my barrel cool and do another 5 shot group and the first shot is high. this happens consistently. any suggestions or ideas of what is going on would be greatly appreciated.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Its a Savage model 11 action in .243 mated to a Criterion 1-7 twist MTU barrel threaded with a Little Bastard brake that's bolted up with a machined stainless barrel nut and a machined stainless .250 recoil lug bedded with Devcon into a Choate Machine stock. Timmney trigger set at 12ozs. and topped off with a NightForce ATACR 7-35x56. Weaver scope rail is also bedded to the action. Lapua brass, 41.5 grains of H4831, 115 Berger VLD Target bullet going 2779fps.What kind of rifle?
Unfortunatly I dont have any pics of groups. Its always about an 3/4 to an inch high.Do you have pictures of groups? Would be good to see if the high shot lands in the same general distance/angle from the center of the group every time.
im not. i single feed using an Anarchy single feed sled. thanks for the reply.Are you feeding from a magazine? If so, try loading a single round at a time ... just to rule out anything involving the magazine.
Its a Savage model 11 action in .243 mated to a Criterion 1-7 twist MTU barrel threaded with a Little Bastard brake that's bolted up with a machined stainless barrel nut and a machined stainless .250 recoil lug bedded with Devcon into a Choate Machine stock. Timmney trigger set at 12ozs. and topped off with a NightForce ATACR 7-35x56. Weaver scope rail is also bedded to the action. Lapua brass, 41.5 grains of H4831, 115 Berger VLD Target bullet going 2779fps.
Another issue I have is crazy ES/SD numbers. ES like 127, 57, 42, 54, 35 and SD 46.5, 20.3, 18.0, 21.9, 14.5.
My reloading process is pretty spot on. Anneal after every firing, Short Action Customs sizing die, chamfer/debur, Creedmoor Sports TRX-925 scale, Bald Eagle competition primer seater, Wilson in-line seating die, 21st Century Hydro-Seating arbor press, 2thou neck tension.
Thanks for the suggestion. Ill give it a try. I rebedded my stock last night also. see if that helps. Maybe just get an MDT XRS stock for it.just a suggestion...
shoot the first round at a different place on the target, then shoot your group and see what happens.
Thanks for the reply.id check if your barrel is hitting somewhere on the stock when it whips.
id also check torque on the choate. id bet its flexing a lot and only settles down when it heats up, expands. i thought people had a lot of trouble with them flexing when they came on some factory guns
No worries. You're not being a prick. Heres my process and equipment:Not to be a prick and if your ES and SD are that big, I wouldnt say your reloading is spot on.
Good gear. Good process. Something in there is amiss.
Pretty easy to get SDs in the mid single digits these days.
Esp with all that quality stuff.
Look at seating?
Over anneal or under?
I am able to get SDs 3-7 using a Lee press and old hornady dies and a mandrel……
And a basic torch annealing set up.
Do have some rcbs and one set of whidden dies too. Same results
what chrono you using?
Some are less reliable (AMHIK)
MagnetoSpeed V3. Ive confirmed the chrono next to one of the new Garmin chronographs as well.it's a cheaper barrel with more stress in the steel or something is causing enough change to its dimensions that while cold causes poi shift.
best thing is to measure how much it's off each time, if its repeatable youre in business. my clean cold bore on my savage 22 is always about .5mil low. really high quality cut rifled barrels don't generally have this problem.
those SD are just crazy, something is definitely up. what chrono?
ive done several seating depth tests. Thanks for the reply.Maybe on the edge of a seating node. Back the bullet up and find a more stable node.
yeah they are.Those ES and SD’s are out of whack. Not saying that’s causing the issue, but I would try a different powder and or primer; not sure what primer you are using. Seating depth could also be playing into that. What annealer are you using? Are you over annealing?
I anneal using a BenchSource annealer at 3.2 seconds. Just before there is an orange hue to the flame. Shoulder bump is .002thou. using a Short Action Customs Modular sizing die.I would suggest not annealing or testing with new brass to see if the es/SD problems immediately clear up. you may have cooked some or all of your brass, I did this once.
also you didnt mention shoulder set back, any idea how much youre bumping the shoulder? best of luck
just so you know, annealing has as much if not more to do with temperature than time... 3.1 seconds literally tells us nothing.yeah they are.
Ive tried H100V, H4350, H4831SC, and H4831 all with same crazy numbers. Tried a few diffrent primers including magnum primers. Currently using CCI#34 primers. I use a BenchSource annealer at 3.1 seconds, just before theres any orange hue to the flame. Ive done several seating depth tests also.
Thanks for the reply and suggestions.
ive set the time with Tempilaq indicating liquid.just so you know, annealing has as much if not more to do with temperature than time... 3.1 seconds literally tells us nothing.
3.1 seconds at 500 degrees will do nothing.
3.1 seconds at 600 may anneal a tiny bit.
3.1 at 700 may well do the job right.
3.1 at 800 has probably totally fucked all your brass and you'll be lucky to get 1 good firing from them.
i personally am too dumb to use flame annealers, found this out the hard way. good times.
Ive been suspicious of the barrel. I dont mix my brass. I keep them seperate and generally only run the Lapua. I started with the Nosler and was getting the crazy numbers and thats why I switched to the Lapua. However, after the switch, I had the same results. And I had no better luck using diffrent primers including magnum primers.Mixing brass?
You mentioned 2 brands.
Sort out and stick to Lapua to test.
Nosler brass can be pretty inconsistent.
Redo a load test with reg cup primers.
The 34 hardness may give odd strikes due to hardness.
Old Rem primers have good consistency.
I usually use Fed 210s.
And, as mentioned, sometimes a bargain barrel aint always good.
Known many of those to shoot awesome and sometimes crap happens.
IF I cant get a broken in barrel to shoot 0.5” groups (5 shots) consistently with lapua brass, good process as you have shown, and a good bullet, it is time for a new one.
Im not rich by any stretch, and my time and reloading components are valuable too.
Thanks for the suggestions and help Cody. I really appreciate it. Maybe Ill give Jim at Northland Shooter Supply a call. Thats where I purchased the barrel.my thought with SD that weird with all those components, if it was that bad with virgin brass youve probably gotten an unlucky barrel. maybe criterion will help you out?
that shouldn't matter until he gets dirt or something into the bolt.Well, all I can say is, with all the money you’ve spent on reloading equipment, supplies, and optics, the only obvious answer to all your problems is you built this rifle off a Savage action instead of a Bighorn Origin. .
that shouldn't matter until he gets dirt or something into the bolt.
Cold Bore Shot I should have said includes the shooter too! @Jason Yenko Best advice yet right here.Sounds like there's a lot of things going on here.
As to the first shot being high, I have a feeling that its the shooter. I don't think any other factor we are talking about here would only show up on the first shot of each group. I'm guessing that your position from the first shot to the next shots changes (even subtly), which is causing the difference. In other words, you get settled in after 1 shot and your group POI changes.
I think you should shoot a couple of groups where you break position every single shot. Shoot, get up, get back down behind the rifle, rebuild your position, shoot. Repeat.
What the above will do is see if it is in fact the shooter that's "settling" after the 1st shot.
Or a Terminus, ARC, BAT, Defiance, Surgeon, Kelblys, Impact Precision, Curtis Custom, or a classic ol trued and blueprinted Rem 700.Well, all I can say is, with all the money you’ve spent on reloading equipment, supplies, and optics, the only obvious answer to all your problems is you built this rifle off a Savage action instead of a Bighorn Origin. .
That makes a lot of sense. Ill try that.Sounds like there's a lot of things going on here.
As to the first shot being high, I have a feeling that its the shooter. I don't think any other factor we are talking about here would only show up on the first shot of each group. I'm guessing that your position from the first shot to the next shots changes (even subtly), which is causing the difference. In other words, you get settled in after 1 shot and your group POI changes.
I think you should shoot a couple of groups where you break position every single shot. Shoot, get up, get back down behind the rifle, rebuild your position, shoot. Repeat.
What the above will do is see if it is in fact the shooter that's "settling" after the 1st shot.
I knew what you were saying I got the joke.It was a joke. I don’t actually think it matters at all.
It is always interesting to me when people have a considerable amount of money tied up in great quality gear, but don’t spend the money for a custom action. The base matters, although it’s not really the issue here. It hits me the same way when you see, often see, a guy on Texas 1000 yard challenge have $5000 or more wrapped up in a custom set up with a Harris bipod on the front and no proper rear bag; as if the gun will magically shoot through those deficiencies.
I knew what you were saying I got the joke.
This was just a side project to see what I could come up with and see how well I could get "budget" components to shoot. Especially considering how well it shot when it was in stock form.
But those crazy ES/SD numbers really threw me for a loop. I wasn't expecting single digits but I genuinely thought they would have been at least acceptable.
Are you letting the barrel cool completely between groups? If yes, you can't guarantee that the barrel was stress relieved well, regardless if it is a brand with a decent reputation or not. Generally though, the top-tier barrels experience this far less.
Not saying that I've got it pinpointed at all. But if the only variable in all of this shooting is letting the barrel cool, I personally get a tad suspicious about a cold bore shift. That being said, I do own a Criterion in an AR and POI doesn't shift as it heats up.
If you are just letting it cool a bit then CBS isn't suspect, and I'd perhaps start to look at you specifically, and your rest setup. Maybe you have something settling down with that first shot, and then start the process over when you get up and reload, then address the rifle again.
I think if its a stress relief issue, the barrel would continue to walk as it heats up, rather than just settle after one shot.
However I'm not an expert on this, but I'll tag one in @Frank Green
About 800 rounds now. However I've had crazy ES/SD numbers from the beginning.How many rounds on the action? Might try a new firing pin spring. It's a long shot but you should not be getting SD like that with those components. Could also be a shit barrel.
That brings up a question I[ve been wondering about. I talked to the guys at PVA and they allowed that the actions was about 10% and the barrel 90%. Ok.It was a joke. I don’t actually think it matters at all.
It is always interesting to me when people have a considerable amount of money tied up in great quality gear, but don’t spend the money for a custom action. The base matters, although it’s not really the issue here. It hits me the same way when you see, often see, a guy on Texas 1000 yard challenge have $5000 or more wrapped up in a custom set up with a Harris bipod on the front and no proper rear bag; as if the gun will magically shoot through those deficiencies.
I don't believe the action has anything to do with the accuracy if everything is functioning properly.
an untrued rem700 could be just as capable of benchrest grade precision as a BAT.
but why pour that kind of money into a crappy action?
rem700 wasn't a great example as that's an acceptable action..
savage. they're capable of great precision when you stick a krieger or Barty on them.
the action comes into play mainly for feeding and extraction, but also plays a role during bedding, mounting, holding the magazine or whatever.
different designs have definite benefits to feeding from certain magazines, but any normal design I've seen could do the trick for single feeding bench rest at least.
Ok, I see the advantages of the custom action, but that leads to another question. If the CdG is a really good action for $899 then what would I gain by spending nearly twice as much for a different custom action. I see some for around $1600...what would one gain? Seems a point of diminishing return.Also a custom action opens up the world of shouldered prefit barrels. It tends to be more ridged, many have integral rails and recoil lugs. They come with side bolt releases and upgraded bolts. Most are also coated.
Only you can determine the value preposition, If you try them it would help you decide. I personally like the Impact and I like the smooth action the integral rail and such. Again it something only you can decide, Many like the CdG, I almost went to the Tenacity Zeus for my last one due to the ease of use with the Quick change barrel, In the end I went back with the 737 as it just works.Ok, I see the advantages of the custom action, but that leads to another question. If the CdG is a really good action for $899 then what would I gain by spending nearly twice as much for a different custom action. I see some for around $1600...what would one gain? Seems a point of diminishing return.