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  #1  
Old 07-09-2019, 07:33 PM
Rimfireshooter99

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Anschutz 1903 MSR



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I recently purchased this rifle to use in benchrest shooting. The rifle shoots really well, but when I checked the barrel for free-float, I find with a dollar bill, it's pretty snug up at the front of the stock. Has anyone else experienced that and does the rifle shoot better after you take a little sand paper to the stock to assure the barrel is free-floating?

Also, I am using action screws at the recommended torque settings (5 nm or 45 inch lbs).

Thoughts?

Thanks,

Rimfireshooter99
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  #2  
Old 07-09-2019, 09:02 PM
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Smoothtrigger
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So....the dollar bill made it down the channel. Is that correct?
Doesn't matter if it was tight or free moving.
If that's correct, you're done with that.

Now the torque question is up in the air because we haven't received a clear answer from Anschutz about all of there many different rifles.

I shoot in a match every month with a bunch fo 1903's, and most of them have found cranking up to 45 inch pounds to be a bit scary.
Now that doesn't mean that level of torque isn't correct, it just seems to be a bit much for them.
But who knows.......Oh, Anschutz knows.
I'm going to contact the one Anschutz executives that I have a bit of relationship with to get an answer.

Smooth

Last edited by Smoothtrigger; 07-21-2019 at 08:49 PM.
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Old 07-09-2019, 09:04 PM
jarhead1077
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No problem with clearance in my Anschutz 1903 MSR. Action screws have been at 40, and 25 in/lbs. Did some testing with my now favorite lot of Lapua Center-X and found significant tightening of groups at 14 - 15 inch lbs. It was repeatable going up in torque and bringing it back starting at 10 working up. Left at 14 - 15 in/lbs.
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Old 07-10-2019, 07:16 AM
Rmeintel
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I just received my new 1903 MSR from ANA. The email that the salesman sent me told me to tighten the action screws to 25 in/lbs
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Old 07-10-2019, 10:08 PM
Rimfireshooter99

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Action Screw torque settings

Smoothtrigger, yes, the dollar was tighter near the muzzle, and much looser as you get closer to the receiver. Thanks for help!

I was using the Owners Manual recommended settings of 5NM which equates to 45 in/lbs. The rifle is pillar bedded, but the information about tighter groups with different settings on the torque values, intrigues me. Maybe time to do a study from 10 in/lbs up to 40 in/lbs, see what the group size impact is. I use Lapua CX also.

I appreciate the information. I'll post the study target so you can see what the groups sizes look like across the range of action screw torque values. I should get to the range this weekend, so I'll come back and post results early next week.

Thanks again for your thoughts!

Rimfireshooter99
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Old 07-15-2019, 04:53 PM
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Results of Torque study

I was able to shoot the study over the weekend and have attached the PSL target I used. I shot the MSR at 10, 15, 20, 25, 30 35, and 40 in/lbs. A couple of sweet spots seemed to come out at 15 and 30 in/lbs. Study was 3-shot groups times 3 for each torque setting. Averages group size was measured (center to center) with a digital caliper and recorded on the target.

Thanks for all the feedback and the study shows how much difference the torque setting can make when you're trying to shoot precision groups.

Rimfireshooter99

Last edited by Rimfireshooter99; 07-23-2019 at 06:55 PM.
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Old 07-16-2019, 01:09 AM
vicfox

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You might be wise to do a bit more testing and repeat the settings that shot well to be sure.
Then just a matter of trying diffent ammo to see what works well for you.




Looks great so far though.
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Old 07-16-2019, 09:40 AM
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RimfireShooter99
I shoot a 64MPR and found torque settings similar to yours gave me the best results. I suggest you try some S&K Pistol Match ammo in yours. This ammo shoots a little better in mine than Lapua Center-X and it is less expensive. I would also suggest you should shoot another torque test of five shot groups instead of 3 shots and see what happens. For me, the front screw at 20 inch lbs and the rear at 15 is where I think mine shoots the best. The additional 4" of barrel on the MPR probably has an effect on harmonics that the best settings for my rifle wont be the same as yours.
Really good shooting by the way.
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Old 07-16-2019, 11:35 AM
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Results of Torque study

Thanks for the suggestions. I will definitely repeat the study, using 20, 25, 30, 35 and 40, with 3 groups of 5 shots each to see if the data still are valid.

Also, I did some initial testing with several brands of ammo using 5 groups of 3 shots each, shortly after I received the rifle. Overall average results were as follows:

Eley Match - 0.330
SK Rifle Match - 0.290
SK Pistol Match - 0.266
Lapua CX - 0.338
Eley Team - 0.408
Eley Edge - 0.400
Fed Ultramatch - 0.390
SK Long Range - 0.382

I also tried a second lot of SK Pistol Match, and SK Std Plus, but both seemed much worse than any of the above with repeated flyers.

I hope to shoot the new study this weekend, and will post the results again for your review. I have RWS Special Match, Geco Match and Fiocchi SM320 Super Match to test this weekend as well. If one any of these look promising, I should have enough to run them through the torque testing too.

Thanks again for your thoughts and feedback.

Rimfireshooter99
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Old 07-16-2019, 11:39 AM
Rimfireshooter99

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Kiddshooter

Kiddshooter, the Anschutz 1903 MSR has a 21 inch barrel like the 1416. I actually purchased a 1416 HB BT first, but could not get results consistently below 0.5 inches at 50 yards. I sold it, and bought the 1903 MSR, which has a target barrel/action, and have been happy with the improved results so far.

Rimfireshooter99
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Old 07-17-2019, 06:11 AM
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All my rifles are free floated barrels. With that assumption, I have found that action screw torque makes no measurable difference, if the bedding is good. I seldom use a torque driver, but I'm sure my normal tension is no more than 20 in/lbs, probably closer to 15. If the action bedding is not good, or, the barrel is not free, then things will change with screw torque. I have also found that Anschutz rifles rarely have action bedding problems. I think their inletting is purposefully a little on the generous side, which works fine with .22 rimfire rifles, as long as the action screws are snug enough to hold it in place.

Last edited by elh0102; 07-17-2019 at 12:10 PM.
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  #12  
Old 07-17-2019, 08:03 AM
Kiddshooter

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Smile

Rimfireshooter99,
Good luck with your test, I'm anxious to see your results.
Personally, I shot some lot tests a year or so back with Eley 10X from different lots and slightly different speeds. all testing was done on the same day, across four lots. I replicated the test 3 different times in one day, starting at 7:am, again at 1:00 pm and the last at 7:00 in the evening. The best results for each test session were different lot numbers. Seems to me, weather, wind conditions and humidity really have a huge impact on the consistency of results.
Nice rifle by the way!
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Old 07-17-2019, 09:29 AM
Rimfireshooter99

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Results of Torque study

Kiddshooter, thanks for the comments. I have also done some lot testing on Lapua CX, and some lots produce smaller group sizes than others. I hope to find a less expensive but just as good ammo that I can routinely use. The SK Rifle Match and Pistol Match seem to do well, but we'll see when I test them again this week.

Rimfireshooter99
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Old 07-17-2019, 12:55 PM
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Try sk pistol match special, the dude that does 50 at 200 shoots it well, I bought it to try but haven't yet, $6.60 a box doesn't seem bad if it works out
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Old 07-18-2019, 05:55 PM
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Quote:
Originally Posted by Shamokinbob View Post
Try sk pistol match special, the dude that does 50 at 200 shoots it well, I bought it to try but haven't yet, $6.60 a box doesn't seem bad if it works out
. SK Pistol Match - some of the older Anschutz just love the stuff.

Giz
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