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Frustrated with Savage Lapua 338......

 
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  #8  
Old 09-29-2012, 01:52 AM
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Re: Frustrated with Savage Lapua 338......

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Originally Posted by Broz View Post
And it should. What is your charge for this load?

Jeff

91 GR OF H1000, 2750fps....90 gr of h1000 gets me about 2700fps and still have the sticky bolt...heck i even had it with 88gr,,,Berger seated .035 from lands....

I just think this gun should be able to shoot those bullets at 2700fps without issues

and yes...i have tried differnt chronos
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  #9  
Old 09-29-2012, 06:23 AM
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Re: Frustrated with Savage Lapua 338......

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Originally Posted by WEATHERBY460 View Post
Sticky bolt issue even with Lapua brass...first 50 rounds the gun shot super. Then had the sticky bolt issue...i backed off my reloads way low and still had it. Was going to send the gun to savage, then called a guy on the net under "savage gunsmithing". he assured me he could fix the problem by machining something....sent the gun in, he called and said my loads are way too hot. Basically i have to shoot the gun at 2550fps or slower according to him to keep it from sticking....so $425 later i get the gun back with a bedded stock and recrown.

Today i called savage, and sent the gun in to them....man i hope they fix this.....the bad thing is it groups great at 2750fps with 300 bergers... .75moa all day long
I have a fairly new Savage 111 FCP/338 Lapua and so far I haven't experience any issues shooting 90 grains of H1000. I'm still working on optimizing my loads. So far, groups are running consistent .25-.5" at 100 yards. I'm curious if you have tried your original load that didn't give the sticky bolt issue using new, unfired Lapua brass and see if you still have the issue. I'm assuming you haven't changed your powder lot, and have an accurate reading seating depth which took me a while with this rifle. If your rifle functions Ok with new Lapua, it could be either a headspace issue, or sizing dye adjustment issue. Using a Hornady Lock and Load headspace gauge with the "E" bushing, new Lapua, trimmed and chambered should be 4.317", the fired case on mine is 4.325", the FL sized case is 4.323" using a Redding Competition FL dye. Overall cartridge length for my rifle is 3.717", seating .023" out of the lands with 300gr Bergers. These measurements are consistent with a couple of my buddies that have the same rifle, shoot the same load, and have no issues. If your rifle varies greatly from these stats, sending it back to Savage is the best solution.
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  #10  
Old 09-29-2012, 07:16 AM
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Re: Frustrated with Savage Lapua 338......

Quote:
Originally Posted by WEATHERBY460 View Post
91 GR OF H1000, 2750fps....90 gr of h1000 gets me about 2700fps and still have the sticky bolt...heck i even had it with 88gr,,,Berger seated .035 from lands....

I just think this gun should be able to shoot those bullets at 2700fps without issues

and yes...i have tried differnt chronos
Your data is right on for your velocities. Those charges are very close to where I would expect to see pressure as they are max charges but I agree your rifle should shoot them as long as you are not getting ejector pin stamp marks.

Jeff
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Old 09-29-2012, 07:59 AM
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Re: Frustrated with Savage Lapua 338......

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Originally Posted by green 788 View Post
Wow... that's a big price for a re-crown and a bedding job.

I can't think of any sensible reason why your rifle would start showing pressure signs (presumably with the same load recipes) 50+ rounds after shooting that very same load recipe with no pressure signs.

Something has definitely changed--and I'm doubtful it's the rifle. Most likely, you've gotten hold of an off lot of powder, or the seating depth has changed... or there is a new lot of bullets.

Rifles actually, as the barrel breaks in, begin to tolerate heavier loads than when new. The leading edges of the lands "dress forward" a bit... and you actually tend to see velocities drop with a given powder charge. I've lost count of the times I've heard shooters say "My load is still shooting well, but velocities are down X percent."

Maybe someone else will have a suggestion as to how a rifle could do what you're describing... but my guess is still the loading components... maybe even a scale going a bit haywire. But the rifle... I doubt it. :o

Dan
I've actually seen speeds come up some on a couple of over bore rifles as they aged, but that's another story.
It sounds as though the OP may have damaged your brass with warm loads on the first firing or two and now they have larger than normal bases and there isn't enough rebound when fired. I've seen it in both the 375h@h and 7mm stw when top loads are used with certain powders, I won't use aa 8700 or similar in my 7stw anymore as I've had to throw away a couple of hundred brass using book loads. Many of the larger brass will still hold a primer when mildly pressure damaged, but will feed/eject poorly and will mimic high pressure loads even when mild.
Cycle all your empty's through the rifle before loading and notice any scratching/ resistance near the web of the case(use a sharpie if you have a question as to whether the scratches are new). If there's anything over nothing, I'd minimum FL all of my brass and try it again. If you still have resistence, it's time for new brass.

Last edited by Lefty7mmstw; 09-29-2012 at 08:08 AM. Reason: brass test
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  #12  
Old 09-29-2012, 08:48 AM
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Re: Frustrated with Savage Lapua 338......

grayfox...i am pretty dead on with your results also on case length...i even tried trimming down to .310" instead of the .314 like books say.....you can see on the brass where its catching...its a slight dinger on the case mouth...not alot...but its there thats its catching.,,....does that say anything?

also i am fl sizing everyone one...using the cheapo rcbs die...should i buy a better die?
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  #13  
Old 09-29-2012, 10:39 AM
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Re: Frustrated with Savage Lapua 338......

Quote:
Originally Posted by WEATHERBY460 View Post
grayfox...i am pretty dead on with your results also on case length...i even tried trimming down to .310" instead of the .314 like books say.....you can see on the brass where its catching...its a slight dinger on the case mouth...not alot...but its there thats its catching.,,....does that say anything?

also i am fl sizing everyone one...using the cheapo rcbs die...should i buy a better die?
Weatherby460,
I'm curious if you have tried new, unfired Lapua brass with your initial loads that were giving you good velocities and no sticky bolt issues. I think this information is important and can assist in diagnosing your issue. I personally prefer the Redding Dyes, having had some issues with RCBS in the past, but this may not be your issue.
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  #14  
Old 09-29-2012, 10:58 AM
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Re: Frustrated with Savage Lapua 338......

Quote:
Originally Posted by Greyfox View Post
I have a fairly new Savage 111 FCP/338 Lapua and so far I haven't experience any issues shooting 90 grains of H1000. I'm still working on optimizing my loads. So far, groups are running consistent .25-.5" at 100 yards. I'm curious if you have tried your original load that didn't give the sticky bolt issue using new, unfired Lapua brass and see if you still have the issue. I'm assuming you haven't changed your powder lot, and have an accurate reading seating depth which took me a while with this rifle. If your rifle functions Ok with new Lapua, it could be either a headspace issue, or sizing dye adjustment issue. Using a Hornady Lock and Load headspace gauge with the "E" bushing, new Lapua, trimmed and chambered should be 4.317", the fired case on mine is 4.325", the FL sized case is 4.323" using a Redding Competition FL dye. Overall cartridge length for my rifle is 3.717", seating .023" out of the lands with 300gr Bergers. These measurements are consistent with a couple of my buddies that have the same rifle, shoot the same load, and have no issues. If your rifle varies greatly from these stats, sending it back to Savage is the best solution.
If someone has modified the firearm most manufacturers will not work on them any longer for labiality reasons.
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