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pressure signs at 1 grain over books starting load

 
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  #1  
Old 08-21-2013, 08:44 PM
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Join Date: Jul 2013
Location: utah.
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pressure signs at 1 grain over books starting load

ok so let me say i am very new to reloading. I am shooting a savage 111 LRH in the 338 lapua. i started putting some loads together and the book (Modern Reloading, 2nd addition richard lee) says to start at 83 grains. i am using H1000, Lapua brass and lapua scenar 300 gr and cci MLR primers #250. i shot a 3 round group with 84 grains. 1 of the primers flattened and all three show slight ejector circles. is this normal? should i try my load ladder below what the book recommends since i am getting pressure signs early? Also i tried FL resizing some brass that where making my bolt stick(also showed signs of OP), no improvement, any suggestions? i am using a RCBS FL die. am i going to have to shell out for a more expensive die? anyways any help would be great. thanks
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  #2  
Old 08-21-2013, 09:16 PM
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Re: pressure signs at 1 grain over books starting load

Had the same rifle. Hornady brass is hit and miss and will jam. Get some Lapua and your chamber problems will be a thing of the past. As for pressure you dont mentioned your COAL (Load to book lenght if not) My rifle really like Retumbo. H1000 never gave me the accuracy. I used Lapua brass, 300 SMK, and WLRM primers.
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Old 08-21-2013, 09:27 PM
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Location: utah.
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Re: pressure signs at 1 grain over books starting load

yeah i went through 2 boxes of hornady to start braking it in. would get stuck all the time, so i did switch to lapua brass and am not going to look back. i am loading just at the books length.
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  #4  
Old 08-22-2013, 06:40 PM
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Location: Central AZ
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Re: pressure signs at 1 grain over books starting load

You should not be experiencing pressure issues with that load. Just some ideas to explore: Are you seating the bullets to where they are being "jammed" into the lands? I guess another way of asking is: Can you load your cartridges into the magazine? If so, then your COL is probably not the culprit. How many rounds down the barrel? What has been your cleaning regimen and what solvents are you using?
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  #5  
Old 08-22-2013, 10:29 PM
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Re: pressure signs at 1 grain over books starting load

i am getting faint rifling marks, but my Col is 3.685 and the book gives me a 3.681, and yep they fit fine in the mag. i have alittle over 100 rounds through it and i try to clean it after every outing. barrel snake, rem-oil. should i try pushing the bullets in a tiny but more, maybe 3.675 and try again?
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  #6  
Old 08-23-2013, 12:31 AM
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Re: pressure signs at 1 grain over books starting load

I would only try one thing at a time, so that you can isolate what is wrong. That way, if it ever happens again, you know the root of the problem.

The easiest thing to do first would be to load up one or two rounds with the shorter COL and see if the pressure issue persists. Another thing to try would be a thorough cleaning with some great solvents. You don't mention what you are using, but you need to use both a copper solvent and then a carbon solvent. Sometimes layers of each can build up on each other.

This very thing happened to me on a custom .243 barrel. Even though I was using a good copper stripper (BMG 50) and a carbon stripper (Hoppes #9 and GM motorhead carbon cleaner), I still developed layers that spiked my pressure. I couldn't figure it out until I finally took it to a gunsmith and paid him $10 to look down the barrel with his bore scope. It was caked in the throat so bad that I had to use onw or two passes with JB Bore Paste just to get things loose. After that, some heavy scrubbing. Some Wipeout left overnight and we were GTG. Things returned to normal. Keep us apprised of your progress.
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  #7  
Old 08-23-2013, 05:19 AM
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Re: pressure signs at 1 grain over books starting load

Quote:
Originally Posted by shawn338lapua View Post
ok so let me say i am very new to reloading. I am shooting a savage 111 LRH in the 338 lapua. i started putting some loads together and the book (Modern Reloading, 2nd addition richard lee) says to start at 83 grains. i am using H1000, Lapua brass and lapua scenar 300 gr and cci MLR primers #250. i shot a 3 round group with 84 grains. 1 of the primers flattened and all three show slight ejector circles. is this normal? should i try my load ladder below what the book recommends since i am getting pressure signs early? Also i tried FL resizing some brass that where making my bolt stick(also showed signs of OP), no improvement, any suggestions? i am using a RCBS FL die. am i going to have to shell out for a more expensive die? anyways any help would be great. thanks
Reloading manuals are only a rough guide . There is no way on Gods Earth that they can allow for dozens of tolerance variables that exist within the manufacture of guns and ammo .
Go back down and find a good safe pressure and accuracy sweet spot and forget about what grains that is . Every gun is a law unto it's self .
I have a friend with a 243 that is popping primers a full 4 grains of powder under my load in my 243 with no excess pressure signs with exactly the same componnents . It seems crazy but that is what is happening .
Don't try to copy anyone else , always start a bit below the recommended loads and work up to that safe sweet load.
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