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Economics- .308 vs .300WinMag

 
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  #8  
Old 07-24-2005, 12:46 PM
daveosok
 
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Re: Some math with it, and what about brass life?

Brass life depends on size of chamber and how hot you load it. If your maxing out your loads then viable reloadings of it will decrease if your using a lower veloctiy load that nets you better accuracy you can epxect longer brass life.
I have a 7mm stw and I have reloaded the brass 6 to 7 times but my loads are not hot and my chamber isnt bad.
Pulled powder is ok if your using it for plinking but its consistancy will not match some of the smokeless powder manufactures. It usually is also temp sensitive and extreme spread may fluctuate beyond what your wanting.
Many variables come into play when you start talking long range hunting, culling your brass, weighing your bullets, weighing your loads, seating depths, extreme spreads, proper bullet weight for twist, type of scope, trigger enhancements, bedding the rifle, the muzzle crown, and many more items all contribute to extended shooting ranges.
The more of them you buy the best of the less error you will have this does not mean that you may have an accurate rifle the shooter plays the biggest part in this equation and pratice is key. But you can be certain that your rounds are consistant and this is one key element of accuracy.
Dan Lilja writes a nice article on long range hunting and its a good read. I suggest you browse his site and look for it maybe some of your questions can better be answered in a more technical meaning?
Dave
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  #9  
Old 07-24-2005, 12:55 PM
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Location: The rifle range, or archery range or behind the computer in Alaska
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Re: Some math with it, and what about brass life?

The nice thing about Lapua brass is that it weighs the same from lot to lot, where as Win, Rem, ect... seldom ever does. I have had 308 brass from winchester weigh as much as 15 grains diffeance from lot to lot. What happens here is differant pressure from differant wall thickness. I dont like to re-develop loads any more than I have to. Its nice to have at least 1 component that doesnt change. Besides 308 brass from lapua is 35 bucks for 100 cases and I have spent 10 bucks on 20 winnies (50 bucks/100) The lapua brass makes good sense.

PS there are 100 bullets per box of SMK.
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  #10  
Old 10-22-2011, 10:19 PM
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Location: Wa. State
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Re: Economics- .308 vs .300WinMag

Thanks guys, good thread, it answered similar questions for me.
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  #11  
Old 10-23-2011, 05:27 AM
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Re: Economics- .308 vs .300WinMag

Assume five firing from the brass for a total 500 firing.
.308 Winchester
$46/100 Remington brass .092/firing
$35/1000 CCI 200 primers .035/firing
$157/8# IMR 4064 powder .121/firing
$150/500 SMK 175 .300/firing
Total .548/firing

.300 Win Mag
$71/100 Remington brass .142/firing
$37/1000 CCI 250 primers .037/firing
$157/8# H-1000 powder .224/firing
$165/500 SMK190 .330/firing
Total .733/firing

Round numbers $.55 per for .308 win, $.73 per shot for .300 win mag
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  #12  
Old 10-23-2011, 09:00 AM
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Location: Wa. State
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Re: Economics- .308 vs .300WinMag

Thats great Tom, thanks for your work on it.
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  #13  
Old 10-23-2011, 09:20 AM
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Re: Economics- .308 vs .300WinMag

Now here is the real cost difference, not just bullets and powder.

Barrel life!

A Win Mag will go 1200-1500 max for effective accuracy in barrel life.

A 308 will go 3000 plus rounds by most records.

A new barrel will cost $325 for the blank and another $200 for chambering and crowning. Maybe little more or less, but that is the ball park in todays $.

So the Win Mag is 2-3x as costly to shoot in barrel life as the Win Mag.

If you plan to shoot a lot, better figure and save for the replacement barrel.

+1 on Lapua brass also. Barrels, Bullets and Brass are the most important components. Do not skimp on either. It will cost you 2x in the long run. Been there done that and have the bloody T-Shirt hanging in the closet.

BH
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  #14  
Old 10-23-2011, 09:33 AM
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Location: Wa. State
Posts: 75
Re: Economics- .308 vs .300WinMag

Now that is something I hadnt considered !! A major item !

Thanks !
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