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.338 rum reloads

 
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  #1  
Old 09-21-2002, 06:19 PM
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Join Date: Sep 2002
Location: lowell,arkansas
Posts: 3
.338 rum reloads

hello all! i'm new to the site although i have been reading it for some time now and have really enjoyed the stories and info.

my question is this.i have a remington m700 lss 26inch barrel.i just fired some loads i worked up from info i found on internet.and they are quite a bit faster than they should be according to the info i have.

example info 250 gr hornady 95 grns.retumbo
2798fps in a 24 in barrel.max is 101 grns at
2964 fps.

my load is 250 grn sierra gameking 95 grns retumbo 3262 in 26 in barrel.96 grns was 3412 fps.

example 2 imr 4831 max load of 81.8 grns at
2770 fps.

my load imr 4831 76 grns at 2722 fps.

example 3 imr 4350 max 79.5 at 2750 fps.

my load imr 4350 77 grns at 2725 fps.my 75grn and 76 grn loads my chrono errored and i didn't get a reading.

factory core lokt 250 grn was at 2846 fps.

and there was no obvious sign of pressure.had my brother-in-law with me he has reloaded for several years and he also didn't see any real sign of to much pressure.
but was concerned because of the velocity being so high.any idea's on what is going on with this rifle?
also no sign that bullets were seated out in the lands.
any ideas and info are appreciated.
thanks
barrett
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  #2  
Old 09-21-2002, 09:32 PM
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Join Date: Sep 2001
Location: North, Texas
Posts: 610
Re: .338 rum reloads

Hodgdon's 2002 manual list: 250gr with RETUMBO 101.0 MAX @2964, H4831 90.0 @2858 and H4350 79.0 @ 2707 fps from a 24" barrel.

These are listed as being MAX LOADS with Rem 9 1/2 primers, so a 26" barrel would give you about 100-200 fps.

I believe that I'm right if not someone please correct me.
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  #3  
Old 09-22-2002, 03:49 PM
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Join Date: May 2001
Posts: 2,369
Re: .338 rum reloads

This seems terribly fast, what chronograph were you using? Do you have access to another chronograph?
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  #4  
Old 09-22-2002, 05:49 PM
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Join Date: Sep 2002
Location: lowell,arkansas
Posts: 3
Re: .338 rum reloads

i have an f2 chrony.i fired the factory load first and it was 2846 fps against an advertised 2900 fps on the box.so i belive it is correct.the only sign of pressure is a possible flattening of the primer.i am using winchester wlrm primers.but they look no different from factory primers after firing.
didn't have my data sheet with me when i started shooting but went back and got it to check after we saw the speeds.we then realised something was screwy.i will check on finding another chorny to double check.

thanks
barrett
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  #5  
Old 09-25-2002, 04:03 AM
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Join Date: Jun 2001
Location: Palmer, Alaska
Posts: 2,539
Re: .338 rum reloads

Find someone with an Oehler 35 and compare the difference in speed, you'll find your Crony brand crony will be the obvious next target to shoot at. I learned the hard way too. I had two of their models and they were always at odds with each other and the manuals too, by ALOT not just a little either. Very frustrating to say the least!!

I still remember the guy that first rented the one Crony (Alpha) I traded to the local shooting range for the Oehler 35p I now have. He rented it imeediatly after the trade and sat down next to my brother and I at the 300yd range as we were setting up the Oehler for the first time getting ready to shoot. We looked over just as he fired his first shot from his 7mm RUM, he had the crony ON the bench at the muzzle and it blew the damn thing about ten feet off the bench in front of him. We laughed our asses off over that for awhile. The guy that runs the range was right it would be wasted the first day out anyway. The only reason the Oehler was in great shape was that nobody knew how to setup and use it, so it never got rented. They're good for letting the local yocal know that his bullets are moving but beyond that they don't have much value for me. I think they waste a lot of peoples time and money, and is downright criminal. FWIW
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  #6  
Old 10-01-2002, 07:44 PM
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Join Date: Sep 2002
Location: lowell,arkansas
Posts: 3
Re: .338 rum reloads

i am going to restart from scratch on my .338
rum reloading project.i have a brand new oehler 35p chrony and some 300 grain matchkings.now i'm looking for load info again.any ideas on loads or where i can find some data.i have retumbo,imr 4350,imr4831 and
reloader22 powder on hand.all help is greatly apreciated.

thanks
barrett
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  #7  
Old 10-24-2003, 09:02 AM
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Join Date: Dec 2001
Location: bluefield,va,us
Posts: 332
Re: .338 rum reloads

barrett cain how is the 338 RUM loading going.care to post your results,thanks,keith
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