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WHOA Nellie !!

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/06/2013 at 22:35
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Alright folks help me out here.
 
I know I have been away from reloading quite awhile but comparing the Speer #14 and the Hornady #8 for Varget loads using a 168 gr bullet there is a BIG difference in the numbers.
 
I dont have a chrono yet or strain gage setup to check things with but what gives with the big difference in the data?
 
Should they be somewhat close?
 
Is there that big a difference in 168 gr bullets?
 
Intended rifle is a Savage10 FCP HS Precision .308 and or my M1A NM / AR-10
 
Speer #14
Bullet #2040 168gr BTHP match
42 gr / 2500 fps - 46 gr / 2750 fps
 
Hornady #8
Bullet #3051 168gr BTHP
32.6 gr / 2100 fps - 44 gr / 2600 fps
 
Anyone able to set me on the path to enlightenment??
 
Rick
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/07/2013 at 04:21
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My .308 bolt gun loves a 168gr. SMK with 45.5gr of Varget and CCI BR2 primers. Lapua, LC brass. Can't say for the M1A.

"Vargay" has a 168gr bullet load on the side of the jug at 46gr. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/07/2013 at 04:37
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32.6 has to be a typo. No way it could drive a 168 gr bullet @ 2100 fps. 42.6 sounds reasonable. Test for over pressure signs but you should be able to work up loads to 45...even 45.5. I've never gotten to 46 without overworking brass.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/07/2013 at 20:48
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jonoMT,
 
I kid you not the Hornady 8th edition pg 494 shows a starting load of 32.6 / 2100fps and shows a max of 44 / 2600 fps.
 
Like I was saying I havent reloaded in quite a number of years the little bit of shooting I have done was with bulk ammo so a friend decided I needed to get back into shooting and reloading.
 
So upshot of it all I have been reading and researching as I know things have changed a bit over the years and checking before I put together my first batch for the 10 FCP I just got.
 
Couple folks were saying the Speer data in book #14 was a tad hot hence my checking.
 
Noted the Speer also called for CCI250 primers on several loads to boot.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/07/2013 at 22:21
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I think it's Hornady that made a typo. Check out http://data.hodgdon.com/cartridge_load.asp
Their loads are generally close to what I've seen.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/07/2013 at 23:19
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Beginning to think so
 
Yeah looking at the powder manufactures data and the bullet manufactures data it is a toss up which one is more accurate.
 
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/08/2013 at 07:21
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DANGER
Horniday lists TWO sets of reloading data for .308 one for military rifles   While the lighter loads work fine in a bolt gun the heavy loads will damage the M1a.   The load hotter can bend the op rod just as using heavy bullets like 180 and up with the gas system turned on can bend the op rod.  
 


Edited by Urimaginaryfrnd - July/14/2013 at 12:07
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/08/2013 at 07:39
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Check which brass they are using too.
Speer will use military brass for service rifle loads sometimes. Military brass walls are thicker than commercial brass and have slightly less case volume than commercial brass, and the max. loads are about 10% less than commercial loads.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/08/2013 at 08:56
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  You also have to take into consideration what type firearm is used to develop loads.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/08/2013 at 21:13
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For the Savage I picked up a 100 rds of Winchester NEW brass and have checked the weight and separated them by weight.
 
Wound up with 57 cases out of a 100 that are within .5 - .75 gr of each other so these will be my break in cases and to work up a moderate load for.
 
The big issue is trying to remember what and how the different brands but same weight bullets effect things.
 
really leaning towards trying to get a strain gage setup and chrono to work up loads with to stay safe.
 
The thing was looking at the load data from the bullet manufactures/powder manufactures and trying to figure out what is "max" and what is not to stay out of trouble.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/08/2013 at 21:54
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Cool beans Uri will write that one down in the log book.
 
Right now just finding any Varget here in the Pacific Northwest is well useless - AA & TAC can be found along with a few IMR powders.
 
Dang while yer at it ship me up some midwest weather!! shoulda moved back to Kentucky!!!!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/08/2013 at 22:01
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Oh I forgot to ask a fellow gave me a kettle full of the India OFV 02 & 98 headstamp ammo - would it be worth the effort to SALVAGE the bullets and brass or just junk the stuff??
 
It looks good but I am not about to shoot that crap in any firearm!!!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/09/2013 at 10:09
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Maybe the bullets...but that brass should be sent back to India to make candle holders.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/09/2013 at 22:15
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So not worth salvaging the brass eh
 
Well either way it is a couple hundres 147gr plinker bullets
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