Savage fcp 338 lapua help

[zackm]

I have a savage FCP 338 lapua it has the factory 20 moa base. I am looking to find a 0 moa base. I have just put Burris Xtr on it like if a lot problem is with my 300 gr smk load the lowest zero I can get is 1070 yards. The Burris 4-20 has 20 moa built in and th factory 20moa gives me odd zero. I verified this at 100 (25.4") high so have a 1200 yard range and went up 1.5 mils and smack on. I shot a 6" 3 shot group 4" right of center. So who makes or might have a 0 moa picatinny base for the as savage fcp that I could buy for reasonable price? The savage 338 lapua has the larger base screws so it is diff. than the standard long acation. buy the way looking for a 1 piece base. Thanks for any help

 

[Wuzup101]

According to the Burris website, that scope has 90MOA of elevation adjustment. I'm not sure where the "built in" 20 MOA comes from (can you explain). You shouldn't have any problem finding a zero with a 20 moa scope base.

 

[backcountryguide]

Zack Murphy Precision will cut you whatever you want and get it done quickly. I put one of his 20 Moa rails on my FCP and the fit was perfect.

 

[lash]

You are the first one to down in base elevation on a .338, that I've heard of. Something's not right in scopesville.

Did you buy the scope new? Do you know how to set the zero on your scope?

Edit: you realize that 20 MOA is about 6 mild right. So you are saying that you only would need 6 mills to get to 1070? Because my ballistic calcs say it takes more like 8.5 mils if you're sending that 300 SMK down range at 2800.

My point is that you need to look into your scope settings before changing out you rail.

Let us know what you find.

 

[zackm]

Lash you are correct i think i am the first that needs to get the scope base with a zero moa for elr. But yes it is all the way down there are no horizontal bars showning and even when i move the turret well off of the zero stop it only goes up. I do get about 90 moa of adjustment when i go up from that point. So i am assuming that i am all the way down on my adjustment. I am not sure what the deal is yet. Maybe the combo of the rings (nightforce lightweight six screw 1.125 high 34mm rings) are part of the problem? The scope sits a little high off of the barrel because it is only a 50mm tube. I had a 56mm tube scope on before. This scope could use a .875 base and fit well. Maybe the extra height is playing in?

The ammo is home made and i am getting 2985fps from my berger otm's and the the SMK. So with a 1070 yard zero i have to go up 1.5 mils to get to 1200 and it was right on. I am going to shoot today and see what happens at 1600 and 1500 yards.

 

[lash]

Zack, the height of the rail should have zero effect on this issue. The only time this will matter is when you are calculating your xlr dope. Then you have to account for the height of the scope from the bore.

In any case, this is still a scope issue. Let's think in simple math terms. If your scope really has 20 MOA built in and you have a 20 MOA rail, then you are 40 MOA up from center if your scope came from factory with the reticle in the center if it's range. That should still give you 5 MOA to play with and have a 100 yd zero. Then you would have 85 MOA adjustment from a 100 yd zero to dial.

So, do you see why I'm saying that you have a scope issue and not a rail issue?

 

[J.J. Kelly]

sounds like the base is on backwards

 

[bas402]

This is a scope issue and NOT a rail issue. I run a 40 MOA rail on my 338 and still have a 100 yd zero with my PH 5-25X56 unless like stated the rail is on backwards

 

[zackm]

I am running 105.7 gr of wc867 to get that vel.

This strange because everything else is perfect. I can us the mil dot to get closer but 1070 is as low as i can get i will check the mount again. It would not take much i guess to get it to sit up. I used levels when i put it on and everything was square front ring to rear ring ect. Scope sat flat in rings. But i should look at everything. The other distances held also just can not get it any lower than the a 1070 zero with that load. with my 285 hornday h-1000 i can get like a 975 zero.

Base will not go on backwards so i know it is no that. I'll keep posting what i find. I did just get this scope 2nd hand but seller was from here and a stand up guy he had no issues and i have no reason to believe it is the cope but. Trip to burris will come i the base does not fix it. The scope instructions says tht the scope optical center is set up with 20 moa built in for elr.

My old scope with this base was a millett lrs and it has 35mm tube and my 100 yrd zero was 16 moa from the bottom of adjustment and that scope has 120 moa adjustment in it i believe. Keep coming with the idea thanks

 

[zackm]

I hold 1/2 moa to 1200 with that load my es 2985 +- 10 fps on 25 or so rounds most of the time on a 5 shot string is +- 5 fps. It has been harder for me to find the wc867 lately i normally buy 16 lbs for 97.00 delivered to my door. I would start with around 102.5 gr and work up. I have flat primers but the corners are still rounded and they extract easy. I use only lapua brass and i have loaded the brass 4x with that load to check if it is hard on it and have no issues there. But be careful it is a full case and i seat my bullets on the lands and i can not put them in my magazine they are to long. They do shoot and bring the vel. So i tolerate it. I do not see the need right now to rapid fire at 1200 to 1600 yards.

 

[lash]

According to the Burris website, that scope has 90MOA of elevation adjustment. I'm not sure where the "built in" 20 MOA comes from (can you explain). You shouldn't have any problem finding a zero with a 20 moa scope base.

Zack, I've looked and looked and cannot find anywhere that talks about 20 MOA built into the Burris XTR II scope. Where did you hear or see that information? Unless there is more to this story than you are writing, I still think that you have a scope reticle or erector travel issue.

Did you go out and shoot at 1500-1600 yds. yesterday like you planned? If so, what were your results?

BTW, that wc867 load sounds interesting.

 

[zackm]

I really like the wc867 load it does increase the recoil a bit and i really found it by a fluke. I load a lot of 50 bmg for a buddy an had a lot of the powder laying around so i looked and found it is. Lot like aa8700 i believe and started at 97 grains and worked up.

The infomation was in the burris owners manual. The bore sight i also had. Problem with at 50 yards i could not get it to go down far enough either. I did not get to shoot it yesterday family plans changed that lol. I am going to to try again today but i'll not gt to shoo past 1000 today. So i will try an use mil dots to see how that works. I am going to contact burris tuesday

 

[lash]

Ok, I pulled up the xtr II owners manual and it does say that it is shipped from the factory set 20 MOA below the optical center. However, right after that are directions to reset the zero stop to get a lower poi. Have you tried that?

Also, with the current zero stop setting, have you verified how much adjustment up that you still have?

 

[zackm]

Yep trie that. I got some of the adjustment but still was 25" high at 100. Tried shooting yesterday again at 1000 and 800 and had use mil dots and they where perfect with my drops.

Called Burris today they agree something is not right with the scope. They think the retinal may have Been put in "to high" or slightly off center. They want me to try tracking by running from top to bottom at 100 yards and see how it tracks. But at any rate they will check it out and fix for no charge and get it back to me ASAP. So I'll double check tracking and send it out.

 

[zackm]

Played with the scope again aftertrying to get it to move up the right distance 90 moa it did not only a few mils. So i called the burris tech again and they had me remove the top cap all the way to expose the top of the turret knob (everything is still sealed at this point) and then i manually brought the scope to it's max elevation by taking it all the up. Then i put the cap back on and brought it to the min elevation. The scope moved approx 90 moa on the paper. Then i properly bore sighted the scope and it appears that after just a bore sight that i will have 20 mils 68 to 70 moa of up travel. Mystery solved. Thanks for all the suggestions. It just seems the zero stop had gotten way out of time with the travel of the scope. I have run it up and down several times now from my max to my min and it travels and stop exactly in the same spot. Now i will see how it shoots again. I have given my elevation knob a really good work out now. Thanks again for all the help