-
Having trouble using the site?
Contact support
Official Accuracy International AT First Look
- Thread starter Lowlight
- Start date
My atlas came in and my rifle is complete (except for the lower rail). I'm saving up for a 6.5 barrel. Just wondering if any of y'all have switch barrels and if so how far off is the zero (from barrel to barrel) I read somewhere that the ax switch barrels were close. Any info is welcome.....thanks in advance
Ok. My three barrels factory .308 24",Dave tooley .243 24",&dave tooley .308 22". The factory barrel and the .243 are maybe 3mil apart. Now the tooley .308 is about 10 mils different. Barrels are not perfect. So if there is a difference. No BIG DEAL. Now if they do not repeat where the go every time. Then there is a problem. ( example )Like going from 10 mils to 1 mil back to 5 mil. If that makes sense. The example is just for one barrel.
Last edited:
Yes, absolutely. I'd actually be more interested in steel than aluminum. Although, I'm pretty sure the rail that comes on the AT is aluminum. I also like the über low rails on the AW/AE.
Thanks....I just need to figure out what length for the 6.5 and where to get one. Was looking at OTM. They have some 26s in stock that are threaded.
Not or sure what the best length is for a 6.5 barrel or how OTM is. Look for a 6.5 blank and give Dave Tooley a shout on here. I sent him two barrels recently. Had quick turnaround time and great to deal with. Try bugholes for your blank.
looks like he has plenty 6.5 blanks. Pick your contour = http://bugholes.com/index.php?route=product/category&path=88_89
Last edited:
OTM will get R Gradous cut it any length you want, I just got my 22 inch threaded 6.5 CM barrel from them. It looks great and the contour is a lot closer to the factory AI with a longer chamber section so it could be set back.
Well I managed to get to the range this afternoon after moving the S&B over to the AT to zero and test some hand loads. I used some left over 155gr match ammo after bore sighting the rifle to get it on paper.
I then swapped over to my hand loads and started with some pressure check loads (although the load I want to use works fine in my AE MKII this is a new rifle so I always start a little low and work up just to be safe) These are the first 3 pressure check rounds with have over 1 grain variance in powder charge. Even with such a difference in charge weight they still shot a little clover leaf at 100
This is the group after firing all 7 pressure check rounds on my way up to my working load these 7 rounds have over 2.5 grain variance in powder charge and the group still measures under 1"
I saw zero pressure signs and was happy so I moved onto the load I wanted to test. I was in a rush and due to personal circumstances have been very busy this past week so I basically went with the exact same load I use in my AE MKII and it turns out that it shoots just as well in the new AIAT. These are all loaded to Mag length and were Berger 175 OTM Tactical projectiles.
The group below was shot by a shooting buddy of mine as a confirmatory group
And this was my best group of the day.
I still find it incredible that these AI's seem to be so tolerant of variances in charge weights (my AE MKII acted the same way when working up loads shooting less than 1" with a large charge weight variance) It also made my life easy as I didn't have to mess around with different seating depths or powders etc, The Berger 175gr OTM's being designed to be very tolerant of jump probably helped too. Anyone that thinks AI's don't hang with customs hasn't shot one
I then swapped over to my hand loads and started with some pressure check loads (although the load I want to use works fine in my AE MKII this is a new rifle so I always start a little low and work up just to be safe) These are the first 3 pressure check rounds with have over 1 grain variance in powder charge. Even with such a difference in charge weight they still shot a little clover leaf at 100
This is the group after firing all 7 pressure check rounds on my way up to my working load these 7 rounds have over 2.5 grain variance in powder charge and the group still measures under 1"
I saw zero pressure signs and was happy so I moved onto the load I wanted to test. I was in a rush and due to personal circumstances have been very busy this past week so I basically went with the exact same load I use in my AE MKII and it turns out that it shoots just as well in the new AIAT. These are all loaded to Mag length and were Berger 175 OTM Tactical projectiles.
The group below was shot by a shooting buddy of mine as a confirmatory group
And this was my best group of the day.
I still find it incredible that these AI's seem to be so tolerant of variances in charge weights (my AE MKII acted the same way when working up loads shooting less than 1" with a large charge weight variance) It also made my life easy as I didn't have to mess around with different seating depths or powders etc, The Berger 175gr OTM's being designed to be very tolerant of jump probably helped too. Anyone that thinks AI's don't hang with customs hasn't shot one
Last edited:
Great shooting. AI rifles can shooting almost any bullet very accurately as long as the operator does their part!
I still find it incredible that these AI's seem to be so tolerant of variances in charge weights (my AE MKII acted the same way when working up loads shooting less than 1" with a large charge weight variance) It also made my life easy as I didn't have to mess around with different seating depths or powders etc, The Berger 175gr OTM's being designed to be very tolerant of jump probably helped too. Anyone that thinks AI's don't hang with customs hasn't shot one
I have seen the same thing! These rifles will shoot just about anything well! I went to the range yesterday with 4 different loads, consisting of Varget and IMR4064 powders and 175 SMKs, 168 A-Max and 178 BTHPs and every load was under 1/2 minute except for a few of the 178 Hornady loads (that I need to fine tune). I even shot a 3/4" group with some 150gr American Eagle my buddy had... Incredible.
Well I managed to get to the range this afternoon after moving the S&B over to the AT to zero and test some hand loads. I used some left over 155gr match ammo after bore sighting the rifle to get it on paper.
I then swapped over to my hand loads and started with some pressure check loads (although the load I want to use works fine in my AE MKII this is a new rifle so I always start a little low and work up just to be safe) These are the first 3 pressure check rounds with have over 1 grain variance in powder charge. Even with such a difference in charge weight they still shot a little clover leaf at 100
This is the group after firing all 7 pressure check rounds on my way up to my working load these 7 rounds have over 2.5 grain variance in powder charge and the group still measures under 1"
I saw zero pressure signs and was happy so I moved onto the load I wanted to test. I was in a rush and due to personal circumstances have been very busy this past week so I basically went with the exact same load I use in my AE MKII and it turns out that it shoots just as well in the new AIAT. These are all loaded to Mag length and were Berger 175 OTM Tactical projectiles.
The group below was shot by a shooting buddy of mine as a confirmatory group
And this was my best group of the day.
I still find it incredible that these AI's seem to be so tolerant of variances in charge weights (my AE MKII acted the same way when working up loads shooting less than 1" with a large charge weight variance) It also made my life easy as I didn't have to mess around with different seating depths or powders etc, The Berger 175gr OTM's being designed to be very tolerant of jump probably helped too. Anyone that thinks AI's don't hang with customs hasn't shot one
Nice shooting but why are you showing a group measuring outside to outside .358 on the calipers when there's two clear .308 diameter holes side by side of each other? Unless you zeroed the caliper with a bullet first?
I must apologise I don't know how I could have been so careless, next time I will be sure to use my "OAF Tactical Thumb"
Last edited:
Ordered my black 20" AT folder tonight. Already have a Vortex Razor HD II 4.5-27x56 for it. Really hoping to get jake6547's lower rail from OTM. I'm on their waiting list thing.
Then I can sort out which Spuhr mount I need.
What's the go to bipod setup for these?
Then I can sort out which Spuhr mount I need.
What's the go to bipod setup for these?
Does anyone have a picture of an AT with thumbhole stocksides fitted? Also does anyone run an Atlas BT10-LW17 on the BT19 spigot with the BT20 rail kit? Thanks
Sent from my iPad using Tapatalk
Sent from my iPad using Tapatalk
If you're looking at the BT19 w/rails, I would take a look at the Big Dog Steel Gen II AI Spigot mount Gen II AI Spigot Rail System I have one on my AT. Very well built design and rock solid
Nolegs, thanks for pointing out that link. Could you post a picture of the rifle with the spigot and bipod fitted please. Thanks
Sent from my iPad using Tapatalk
Sent from my iPad using Tapatalk
Did you weight that yourself? Seems light compared to what the Mile High guys said earlier in this thread, but it may be because of the 20" vs. 24" barrel.
Thanks for posting this. The AT will be my first AI rifle. Ordered the spigot today. Now, to find a PSR in stock!
Here you go bud. Ordered 2 last week(which will be here tomorrow) and one yesterday. Looks like its in stock https://www.triadtactical.com/Atlas-PRS-Bipod.html
Just ordered one of the lower rails. These look like a very practical and well made necessity for for these new AI AT rifles.
Could always get the 24 and hack it down later if you want to go shorter. Really depends on what sorts of velocities your needs require and if you want to save a little weight for a few FPS. I like the 20" I'm running, if I need more distance than it can reach I can just throw the 260 barrel on.
I have a 24" barrel on my AT, took it out to 1350 yards yesterday and went 12 from 16 on an IDPA torso target, I do plan on getting a .260 barrel for it to though. Really comes down to what you want but I like having the extra velocity
I was thinking the same thing before I ordered mine and I probably would've gotten the 24" except EuroOptic only had 20" folders in stock when I was ready so that's what I went with. I couldn't be happier with it. It's very handy and the weight savings is nice. I'm getting right around 2600fps with hand loads and I shot my first match with it today out to 600 yards and almost got a perfect score.
I also plan on a 24" 260 barrel soon... Part of the reason I'm happy I got the 20" for 308, like [MENTION=85304]ZombieMonkey[/MENTION] said as well.
Got to shoot with some AI employees yesterday saw the AT AX and AX700 chassis. Can't wait till SHOT this year!
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
