• The Shot You’ll Never Forget Giveaway - Enter To Win A Barrel From Rifle Barrel Blanks!

    Tell us about the best or most memorable shot you’ve ever taken. Contest ends June 13th and remember: subscribe for a better chance of winning!

    Join contest Subscribe

First precision rifle build

kennypowers

kennypowers

Private
Full Member
Minuteman
Feb 5, 2011
90
0
Gulf of Mexico...200+ days a year
#1
8/18/11
IMG-20110818-00005.jpg


remy2.jpg


The rifle and the several parts were purchased from a fellow hide member, CMH

-Remington 700 sps tactical (308)
-B&C Light Tactical A3 stock
-6-9" Caldwell swivel bipod (cabelas)
-EGW 20 MOA Aluminum Base
-Burris Extreme Tactical 1" low Rings (natchez shooter supply)
-Bushnell 10x40 tactical mil/moa scope (red dot scopes.com)
-Ernies Trigger Spring
-magazine extender
-AZ Precision custom bolt knob (Hollow Phoenix with no rings)
-Bolt Cerakoted in matte black
-100 rounds of FGMM 168gr BTHP (Palmetto Armory)

To Come:
-Eagle Shooter's Stock Pack Rifle (triad tactical)
-sling- TAB gear sling (triad tactical)
-drag bag
-flip covers
-data book-Storm tactical mini modular or Impact modular (triad tactical)
-Bottom metal with detachable magazine maybe hs precision or badger ordnance

First range day will be this sunday. I will post results. Any help on the equipment yet to be purchased (drag bag, data book, and bottom metal) or any advice/feedback would be great. Thanks
 
#6
Re: First precision rifle build

Took it to the range today and got the left and right adjustments quick. Elevation was a bit of an issue. Held 30moa at 100yds on the scope and 5mils which equals about 18moa on the reticle. Still shot high.

Took to local gunsmith and he said I should shim the back up with pieces of aluminum. Would I be shimming between the ring and scope? Or between the base and ring?

Any other suggestions besides shimming with little pieces of aluminum?

Thanks
 
#7
Re: First precision rifle build

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kennypowers</div><div class="ubbcode-body">Took it to the range today and got the left and right adjustments quick. Elevation was a bit of an issue. Held 30moa at 100yds on the scope and 5mils which equals about 18moa on the reticle. Still shot high.

Took to local gunsmith and he said I should shim the back up with pieces of aluminum. Would I be shimming between the ring and scope? Or between the base and ring?

Any other suggestions besides shimming with little pieces of aluminum?

Thanks </div></div>

What exactly do you mean you held "30 moa high on the scope" and 5 mils on the reticle. Generally you only "hold" as in hold-over using the reticle. In this case, you reticle poa would be 5 mil under the target if you were trying to correct for shooting high - is this what you were doing? Are you are out of elevation on the scope (I'm assuming yes as that really is the only reason you would try to hold-over while zeroing)? Are you dialing "down" and not "up" to correct for shooting high (meaning you can not turn the dial any further in the "down" direction)?

I would try to test that scope on a friends rifle to eliminate it as the problem (even putting it on a 22 would work). The base could have been milled wrong - that's always an option. I have an EGW 20moa base on my 308 and never had any issues with it - but shit does happen. You could try a 0 MOA base instead of a 20 MOA base - but with 80 MOA of elevation that scope should be okay with either.

Edit: you can fix such a problem by using a shim; however, that is not the way to go with new / modern gear. Something isn't in spec if this is happening. You should be burning ~5 moa with a 100 yard zero + accounting for the 2" or so your optic rides over your bore. If you have 80moa of total adjustment in that scope (ideally) and a 20moa base, you should have 55moa of "up" elevation when it's zeroed @ 100 and 25 moa of "down."
 
#8
Re: First precision rifle build

Nice rifle. It's also similar to my first build.

I would imagine you would want to shim between the base and the action. I'm new to this so I may be wrong though.

 
#10
Re: First precision rifle build

From looking at the base in the pictures, no, it isn't on backwards. I am not really following what the OP is trying to say with the holds and adjustments.

I would not be using any shims for that setup. Everything that I can see in the pics would indicate that it is assembled correctly. Check everything, make sure it is all tight.

That Bushy you have for glass should be good to go as well. I would optically center the erector, pull the bolt, bore sight down the center of the barrel, and adjust to the scope to hit what you see in the center of the bore at 100 yards.

That will get you close, or at least on the paper. Sight in from there adjusting the turrents, and do not use any "holdovers" at all. Let the turrents do your holdovers for you. Then get back to us on what you find out.

DK
 
#11
Re: First precision rifle build

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: kennypowers</div><div class="ubbcode-body">8/18/11
IMG-20110818-00005.jpg

</div></div>

Base looks like its on correctly but I think your scopes on sideways.

There should NOT be a knob on the "left" side of that scope. In the picture it looks like I can see the silver turret retaining screw for what should be the elevation knob.



Loosen your rings rotate the scope 90 degrees right so you have an elevation knob on top and a windage knob on the right.

Re tighten rings.


Slap your gunsmith.

Send me check for 50$
 
#14
Re: First precision rifle build

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: rrflyer</div><div class="ubbcode-body">Slap your gunsmith.</div></div>

LMAO!! My thoughts exactly...

DK
 
#16
Re: First precision rifle build

Yep looks like the scope is on wrong. You are adjusting your windage with your elevation knob vis versa.

Don't feel stupid, I did it once too!
 
#17
Re: First precision rifle build

The picture is what i threw together hastily to post on here when i first got the rings and scope in the mail. After i took the picture i took the scope and rings off.

Last night I attached the scope and rings properly, then took the bolt out and looked at a knob in my kitchen, then got the scope aligned with the knob or pretty damn close. Maybe thats the issue. I guess that little bit it was off could have been magnified at 1oo yards?

I dont think the base is an issue as it is came bedded with 95% coverage with the gun when i purchased it. And the previous owner had no issue with accuracy.

When i say I held 30moa on the scope I mean I dialed the scope 30moa down becuase it was shooting high, and held 5 mils or about 18moa on the reticle.

NO gunsmith screwed this up. I assembled the rings and scope. I just asked a local gunsmith what he thought was wrong then asked the hide what they thought.
 
#18
Re: First precision rifle build

"Magnified at 100yrds" would be an understatement. You can do this in the kitchen, but you have to take into account the difference in the bore of the barrel, and the bore of the scope. This offset should be marked accordingly across the room.

Even doing this at 100 yards is not exact. You are talking about the difference in POA/POI. The distance of 100 yards works better though.

You will get the problem figured out, I am sure...

DK
 
#21
Re: First precision rifle build

Recommendation, aside from the sling and the flip covers, worry more about good ammo and reloading if you dont already and practice with it. As for the bottom metal, CDI is good and they use the AICS magazines.
 
#22
Re: First precision rifle build

Thanks for all the advice and patience with a struggling newb

Took it back out again on Tuesday and got some bright posterboard to boresight. Left everything assembled as it was for the first sight in. Worked well. Eventually I was able to adjust and get it on paper to produce some decent groups.

Once again I'm fine on the windage. Have plenty of adjustment either way. But elevation is a bit of an issue. I have 13moa of adjustment down leftover after zeroing.

I know I will not be needing that much elevation adjustment to begin with, simply shooting 100-300 yards, but with the fgmm 168gr at 1000yards 40moa+ is needed. I ran this calculation on JBM.

Should I simply go out to the range and take the scope and rings off. Set up more posterboard and get a point of aim from the bore. Then put the rings and scope on, but leave room for adjustment, by not completely tightening the screws. And acquire the same point of aim as the bore? Then tighten the screws?

Any suggestions as to getting a lower point of aim on the scope?
 
#24
Re: First precision rifle build

Wow, 13 MOA just don't sound right. You already have the canted base, so that really shouldn't be an issue. About the only thing that I can account for that might be a problem would be the scope itself. It is a Bushy though, but who knows.

You can swap that 10X Bushy for a 10XSS, I know for a fact that adjustment wouldn't be an issue then. The only other thing I would try, would be to swap out the base for a higher MOA cant.

DK
 
#25
Re: First precision rifle build

If you have 13moa down left over that means you should have 67moa up. You make an up correction on the scope to shoot farther away so I'm not seeing the issue here. Correct me if wrong or your not explaining it correctly but I think your fine.

Also did you remove your turrets and shift them to zero so they are easy to repeat and find your elevations?

Good luck,
Merritt
 
#26
Re: First precision rifle build

8/27
Yes Merritt you are correct. For some reason I was getting it backwards. As Merritt stated I have 67moa adjustment up, so i should be fine when I am able to take the training wheels off. Everything is good to go now and am very happy with my set up.
Took it out today and put 10 rounds threw her for my first real recorded range experience. Heres the results. The spacing on the target is 1" on the cubes

IMG-20110827-00017.jpg


For the first eight rounds I aimed at the bullseye. Furthest left, around the ten, is the cold bore shot. The three shot group around the nine were shots 2,3,4 and are a little over .5moa. Shots 9,10 are the upper right and show that I have windage down but elevation I may be "pulling" or "flinching" and thats affecting the elevation in the groupings.
 
#27
Re: First precision rifle build

The variation on the upper two shots could be due to a breathing control issue as well. Actually that could be the main issue with all the shots. I know for me that is my weakest point as a new shooter.
 
#28
Re: First precision rifle build

12/21

Accuracy has improved since my last post. Finally found out about loading up the bipod; which I believe has significantly helped me. Im consistently getting solid three shot groups (sub moa) but am never able to maintain my accuracy for a solid 5 shot group. Im thinking a rear bag and cheek rest may cure this issue.

Thinking about making a zero-stop out of pvc for my bushnell 10x, will post pictures and directions when completed

Also considering kryloning my rifle one day this week

Heading to Cabela's soon to get the reloading supplies so I can keep shooting weekly. This .308 ammo isnt cheap
 
You must log in or register to reply here.

Similar threads

J
New to forum + New rifle build
Replies
0
Views
144
JTF91
J
usmc3439
Savage Model 10
Replies
0
Views
236
usmc3439
usmc3439
W
First Long Range Rifle…Defiance Deviant…Any Tips Appreciated
Replies
3
Views
309
kthomas
kthomas
FireRider702
Firearms FOR SALE: Custom 6.5 PRC Long-Range Rifle for Hunting and Competition
Replies
0
Views
428
FireRider702
FireRider702
FireRider702
Firearms FOR SALE: Custom 6.5 PRC Long-Range Rifle for Hunting and Competition
Replies
0
Views
223
FireRider702
FireRider702
Top Bottom
Back
Home
Forums
Merch
Alerts