I was curious what kind of accuracy people are getting from their PSS's, at all ranges. I've only shot mine at the range twice, and both times at 100yds. All groups have been under 1 MOA with a few right at .25MOA. This is using Federal 168gr Match Gold Medal and a Springfield 3rd Gen. Government model scope. I'm kinda curious if the .25MOA is above average, or if it is the norm for this rifle. I'm also a little baffled as to why I get 4 inch or so groups with Winchester 168gr. ballistic silvertips. Does this rifle just not like moly coated bullets? Anyone else experience this problem? Should I buy a few more boxes to see if I just got a bad lot? Thanx guys and gals...
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
Normal accuracy for a 308 PSS?
- Thread starter brouhaha
- Start date
Al Thompson
Staff Alumnus
Looks like you have a better than average PSS. I've worked with 6 or so and the average (IMHO) is about .75 to 1.25. A couple have needed some tweaking to tighten the groups.
Most firearms are sensitive to ammo changes. Yours just dosen't like the Winchester rounds. The PSS that was made next on the assembly line may love'em. No rhyme or reason sometimes.
Try the Federal 165 Ballistic Tips and the 165 Sierras. Odds are it'll like one of those too.
Giz
Most firearms are sensitive to ammo changes. Yours just dosen't like the Winchester rounds. The PSS that was made next on the assembly line may love'em. No rhyme or reason sometimes.
Try the Federal 165 Ballistic Tips and the 165 Sierras. Odds are it'll like one of those too.
Giz
WalterGAII
Moderator
Most rifles with naked barrels won't shoot moly accurately until the moly "lays in", from the breech to the muzzle. If you're going to shoot moly, you don't need to shoot anything but moly.
The accuracy that you describe is typical for the Remington VS class of rifles. The last group that I measured from my .223 VS was .246", five shots, center-to-center.
The accuracy that you describe is typical for the Remington VS class of rifles. The last group that I measured from my .223 VS was .246", five shots, center-to-center.
My friend has a 700 PSS which gives him 1/2" groups at 100 yards. He has it scoped with a Leupold Mark IV M1, Leupold Mk IV bases & rings, and uses Fed. fact. loaded 168 bthp bullets.
Regarding work on the rifle, fitting the mag box ensures that when you tighten the rifle down (screw the trigger guard down), it will clamp down consistenly. It's a minor point, but what you're doing is ensuring that one less factor to go wrong with the harmonics. The heart of the gun, the barrelled action, remains the key to accuracy.
Regarding work on the rifle, fitting the mag box ensures that when you tighten the rifle down (screw the trigger guard down), it will clamp down consistenly. It's a minor point, but what you're doing is ensuring that one less factor to go wrong with the harmonics. The heart of the gun, the barrelled action, remains the key to accuracy.
IBA PSS Tune-up
jon jon -
The IBA process of polishing the feed ramp and fitting the mag box just enhances reliability, not the accuracy of the weapon.
However, the also true the action by squaring the bolt face to the action, lap the bolt lugs, polish and headspace the chamber to match tolerances for consistent round chambering. These have a direct effect on accuracy. I've seen some PSS's with excessive headspace and were 1 - 1.5 MOA at best.
Another service that they include is replacing the factory lug with the Badger oversized lug and bedding the lug and action to the stock using Titanium Devcon. The also contour the pillar bedding to ensure full contact with the action. They also relieve the barrel channel a little to ensure that the barrel is truly free-floating.
When you go for the Master Tune-up, they include the Heavy Duty steel trigger guard. It's primarily for rugged field use and it adds some mass to the rifle. It also provides a more solid anchor point for the action.
My PSS was shooting 1/2 MOA out to 800 yards before I sent it to them. It'll be about 4 - 5 weeks before I get it back so I can post the results at that time.
jon jon wrote - Gizmo and Walter, since you guys have experience with 700s, I was just curious after looking at the IBA website's PSS tune up, does polishing the feed ramp and fitting the mag box contribute to any noticealbe improvement in accuracy? Thanks
jon jon -
The IBA process of polishing the feed ramp and fitting the mag box just enhances reliability, not the accuracy of the weapon.
However, the also true the action by squaring the bolt face to the action, lap the bolt lugs, polish and headspace the chamber to match tolerances for consistent round chambering. These have a direct effect on accuracy. I've seen some PSS's with excessive headspace and were 1 - 1.5 MOA at best.
Another service that they include is replacing the factory lug with the Badger oversized lug and bedding the lug and action to the stock using Titanium Devcon. The also contour the pillar bedding to ensure full contact with the action. They also relieve the barrel channel a little to ensure that the barrel is truly free-floating.
When you go for the Master Tune-up, they include the Heavy Duty steel trigger guard. It's primarily for rugged field use and it adds some mass to the rifle. It also provides a more solid anchor point for the action.
My PSS was shooting 1/2 MOA out to 800 yards before I sent it to them. It'll be about 4 - 5 weeks before I get it back so I can post the results at that time.
I just got to try my 700P for the 1st time this weekend. Nothing much to brag about at this point. I boresighted the rifle at 100 and was on paper with the first shot.
Since, I was doing the one shot and clean using some NATO surplus, fiddling with the scope to find my zero, and the wind was gusting 20-25 MPH, I guess I should be happy all the rounds were in the black, once I got the sights centered up.
After about 20 rounds of NATO ball, shoot one and clean, I shot 10 rounds of Federal GMM 168's and got a couple of 3-4 round groups of just over an 1 inch, but in different places, as I was still playing with the scope.
I plan to go out next week with my handloads that attempt to duplicate GMM (and less wind), to see what the rifle will hold with that.
Since, I was doing the one shot and clean using some NATO surplus, fiddling with the scope to find my zero, and the wind was gusting 20-25 MPH, I guess I should be happy all the rounds were in the black, once I got the sights centered up.
After about 20 rounds of NATO ball, shoot one and clean, I shot 10 rounds of Federal GMM 168's and got a couple of 3-4 round groups of just over an 1 inch, but in different places, as I was still playing with the scope.
I plan to go out next week with my handloads that attempt to duplicate GMM (and less wind), to see what the rifle will hold with that.
I've got a bone stock PSS that'll shoot 5 shot groups at 3/4MOA consistantly out to 200yrds. It's fairly new so I haven't had the chance to shoot out further or tweak with it yet.
I'm curious about this website you're talking about. Is it Iron Brigade? If so, I too would be curious to see the results. I've got a BDL model and I'd like to switch over to a "reliable" box mag, but haven't found one that everyone raves about. Is that what IBA will do when they say "fit box mags"?
Thanks!
-Red-
I'm curious about this website you're talking about. Is it Iron Brigade? If so, I too would be curious to see the results. I've got a BDL model and I'd like to switch over to a "reliable" box mag, but haven't found one that everyone raves about. Is that what IBA will do when they say "fit box mags"?
Thanks!
-Red-
IBA box mag.......
Gent's, may be off base, but what I think they are talking about is the "INTERNAL", metal box that your spring and follower ride in.
On the M40 series of rifles, it has long been a practice of tig welding the mag box to the reciever.
A hard meteal to metal fit.....(i.e.) mag box, to triggerguard assy, that touches the reciver, is deterimental to accuracy.
I would think, they are making a fix HERE, as a detachable box mag is not a relly desirable thing on a Tac rifle......
Just one more thing to lose, and or keep up with.
Not to mention, functionality problems...........
Just look at Rem, they discontinued the DM series on the PSS, and LTR's.......because they would NOT for the most part feed reliably.........
If I'm incorrect, pls correct me.....I can't see Norm Chandler converting BDL style TG's, to removable box magazines..........
Gent's, may be off base, but what I think they are talking about is the "INTERNAL", metal box that your spring and follower ride in.
On the M40 series of rifles, it has long been a practice of tig welding the mag box to the reciever.
A hard meteal to metal fit.....(i.e.) mag box, to triggerguard assy, that touches the reciver, is deterimental to accuracy.
I would think, they are making a fix HERE, as a detachable box mag is not a relly desirable thing on a Tac rifle......
Just one more thing to lose, and or keep up with.
Not to mention, functionality problems...........
Just look at Rem, they discontinued the DM series on the PSS, and LTR's.......because they would NOT for the most part feed reliably.........
If I'm incorrect, pls correct me.....I can't see Norm Chandler converting BDL style TG's, to removable box magazines..........
QA Commando
New member
I've got the Rem 700 VS, which I hear is the same action as the PSS on a slightly different stock. I load my own cartridges, but don't have a real good bench rest. With my Leupold 4 x 12, it's relatively easy to shoot .75" 5 shot groups at 100yd. I've recently lightened the trigger (which is something that is relatively easy to do), but I haven't had a chance to shoot it since.
My best load for this rifle so far is the Sierra 168 gr. HPBT bullet with 41 gr. of Reloder 15 powder. I also get real good results with 42.5 gr. of IMR 4320 powder.
My best load for this rifle so far is the Sierra 168 gr. HPBT bullet with 41 gr. of Reloder 15 powder. I also get real good results with 42.5 gr. of IMR 4320 powder.