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Old 10-25-2009, 03:48 AM   #11
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The difference, if I'm reading my information correctly is barrel length.


QuickLOAD Projected Velocities in FPS with Increasing Barrel Length from 20" through 32" in one inch length increments.

Powder
44.5gr Varget (ADI 2208) - 2592 2620 2646 2671 2694 2716 2736 2756 2775 2792 2809 2825
44.5gr IMR 4064 - 2628 2656 2681 2705 2728 2749 2770 2789 2807 2824 2841 2857

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Old 10-25-2009, 04:33 AM   #12
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I like the new 135gr SMK and 155gr SMK Palma for my 308 you can get them both cooking right along. the 135gr is a short fat bullet so it is meant for 300 yards or under.

Varget RL-15 and RL-19 are all great powder for the 308. The fastest powders you will find are the 500 series from VV N530, N540, N550 are the cats nuts and will produce velocities at or above whats listed in the manual.

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Old 10-25-2009, 04:36 AM   #13
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Thank you, Tango!!

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Old 10-25-2009, 04:49 AM   #14
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This is the way I understand it.
I think alot of it has to do with barrel harmonics.
Ive seen two identical guns shoot the same load with different results.
Maybe due to minor differences in bedding, throat length, barrel stiffness or size,etc
A barrel moves when fired, the muzzle moves in an arc
Loading your own allows you to custom tailor the load to have the bullet exit the muzzle at the most stable point of the arc. Some I've read say its at the top or bottom of the arc where the barrel pauses briefly before reversing direction others say the middle of the arc(neutral position). That was kinda the concept behind the BOSS System, but it would allow you to adjust a weight on the muzzle to tune to a factory load instead of visca-versa

I dont know, Im no scientist or engineer but I do know changing charges a few 1/10 of a grain or bullet seating depth a few thousandths either way can yield dramatic changes in group size.

The only load I have ever got really good results out of in every rifle Ive tried it(3/4" or better 3shot @100yds) was originally loaded for a 24"Rem700BDL 30-06.
30-06 Rem Case
56gr IMR4350
Fed210 Primer
165gr Sierra Gk and/or Nosler BT
Seated just short of lands (.030)

Another successful load is for 7mm STW
Rem case
81gr H1000
Fed215 Primer
140gr Nosler BT
Seated just short of lands

This load has shot a best of .065 out of my factory 24" Rem700 rechambered from 7mag
Sub 1/4" out of friends custom built 26" Douglas barreled Sako
Around 3/4" out of other friends factory 24" Rem700bdl SS - It shot 1.5 out of another identical rifle though

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Old 10-25-2009, 12:28 PM   #15
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OCW or Optimal Charge Weight load Development.

Dan Newberry's OCW Load Development System

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Old 10-25-2009, 12:28 PM   #16
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".. if I'm loooking for a specific reload for a DPMS LR-308 and a member who reloads has found THE reload combo for that gun? If they are willing to share information, why not? "

"Why?" is more to the point. That point being there is no such thing as "THE reload combo" for anything. That idea is attractive but it's not that simple. It's sorta like asking "What's THE line that will seduce a 115 pound red-head with a dimpled chin who lives on the north side of Chicago." That's so far off base as to not only be unhelpful, it would more likely be counter productive to even attempt it! Rifles, like women, are different, what works with one is unlikely to do so with any assurace with others. If, in fact, there were any such lines - or loads - there would tables giving up the "secrets" in any book or magazine on any such subject!

There are no secrets, not even much general "truths for accurate loads." Like women, we must learn to treat each rifle individually, reacting as they respond or not.

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Old 10-25-2009, 12:46 PM   #17
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I have also found that if you get the Sierra Reloading manual they have the most accurate load listed. I have found that for a given bullet in a given cartridge this will get you closer to an accurate load than anything use.

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Old 10-25-2009, 04:23 PM   #18
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Quote:
Originally Posted by res45 View Post
OCW or Optimal Charge Weight load Development.

Dan Newberry's OCW Load Development System
Nice Read! Thanks
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Old 10-25-2009, 05:35 PM   #19
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Quote:
Originally Posted by 1hole View Post
"What's THE line that will seduce a 115 pound red-head with a dimpled chin who lives on the north side of Chicago."
This is what I am seeking when I ask for reloading recipies! A combinatin of bullet style/weight/tec, powder manufacturere/charge, and proceedure that will get me close enough, to that 115# red head with the dimple, for all practical purpooses.
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Old 10-27-2009, 03:51 PM   #20
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My go to 223 load

50gr Hornady V-max
Winchester Cases
CCI-BR4 primer
24gr AA XMR2015
This is loaded .020" off the lands.
My gun produces .400" 5 shot groups with this load

My other is
50gr V-max
Winchester cases
CCI-BR4
26gr VVN133 (ABOVE VV LISTED MAX)
seated .020" off lands.
SMOKING FAST at 3680 FPS
between .4 and .5" 5 shot groups.

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