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Old 04-23-2013, 11:23 PM   #1
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Default 243. Vs 308.

Which do you think is a better round? Which is more versatile? And why? Looking to buy a ruger American and I need some help on which caliber I should choose.

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Old 04-23-2013, 11:35 PM   #2
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308 can do anything a 243 will do. 243 will not do everything a 308 will do.

308 is the best all around white tail deer round on the market.

All of the above is my HMO, OMMV.

Gonna shoot varmints and 'yotes only, get a 243.

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Old 04-23-2013, 11:35 PM   #3
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243 is much hotter with a significantly reduced barrel life. If you aren't a heavy varmint hunter who craves the velocity go for the 308. 6mmbr.com has a good comparison write up.

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Old 04-23-2013, 11:43 PM   #4
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243 is much hotter with a significantly reduced barrel life. If you aren't a heavy varmint hunter who craves the velocity go for the 308. 6mmbr.com has a good comparison write up.
while i do agree with part of your statement, that a 243 would be the better if primarily using it for varmint hunting and i feel that for most practical purposes the 308 to be more versatile of the two.

but the 243 being a barrel burner, now that i have to disagree with. my fathers Winchester M70 in 243 has fired literaly thousands of rounds through it in over 40 + years and last year when sighting in a new scope, it still was very accurate. a three shot group at 100 yards less than .5" with all three touching. hardly a barrel burner.
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Old 04-23-2013, 11:56 PM   #5
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Compromise and get a 270. No problem finding 270 ammo right now.

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Old 04-23-2013, 11:59 PM   #6
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Quote:
Originally Posted by axxe55

while i do agree with part of your statement, that a 243 would be the better if primarily using it for varmint hunting and i feel that for most practical purposes the 308 to be more versatile of the two.

but the 243 being a barrel burner, now that i have to disagree with. my fathers Winchester M70 in 243 has fired literaly thousands of rounds through it in over 40 + years and last year when sighting in a new scope, it still was very accurate. a three shot group at 100 yards less than .5" with all three touching. hardly a barrel burner.
Now what did he mean by a barrel burner? That the 243 barrel doesn't last long?
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Old 04-24-2013, 12:08 AM   #7
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Compromise and get a 270. No problem finding 270 ammo right now.


Bad choice!!! Bad, bad choice. 7mm-08 would be much better.

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Now what did he mean by a barrel burner? That the 243 barrel doesn't last long?
The .243 may not last as long as a .308, much of that has to do w/ how many rounds you put down range in a minute.
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Old 04-24-2013, 12:14 AM   #8
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Now what did he mean by a barrel burner? That the 243 barrel doesn't last long?
when you take a large case and stuff a very small bullet in it, with fast burning powders to get very high velocity, they can erode the barrels much faster than others.

look up the history of the 220 Swift vs. the 22-250.

some cartridges were more prone to eroding barrels than others, hence the term barrel burners. IMO, most 243's don't fall into that catagory.
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Old 04-24-2013, 12:25 AM   #9
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Quote:
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while i do agree with part of your statement, that a 243 would be the better if primarily using it for varmint hunting and i feel that for most practical purposes the 308 to be more versatile of the two.

but the 243 being a barrel burner, now that i have to disagree with. my fathers Winchester M70 in 243 has fired literaly thousands of rounds through it in over 40 + years and last year when sighting in a new scope, it still was very accurate. a three shot group at 100 yards less than .5" with all three touching. hardly a barrel burner.
I stand corrected. Is that a stainless barrel?
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Old 04-24-2013, 12:30 AM   #10
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Quote:
Originally Posted by JTJ
Compromise and get a 270. No problem finding 270 ammo right now.
Not a compromise 270 has a ballistic advantage over the .308, .243 and the 7mm-08 although the 7mm-08 comes with a wider range of bullets available and no caliber can match the variety of the .308 bore.

All would be good choices although I have always felt that .243 was a bit small for a large Whitetail. Plus when you get to the deer bullets you loose so much velocity that it isn't really as flat shooting as many would have you believe.

As far as calibers and barrel life are concerned some barrels just last forever. It is so inexplicable that US Army Marksmanship unit had (last i heard) quit rebarreling rifles due to round count and now waits for there to be a demonstrable decrease in accuracy. (They were having some barrels go at 3500 and others last over 8000) The .243 is however known for being hard on barrels the estimates are around 1200-1500 rounds on the average match rifle far short of the 3500-5000 rounds you can get out of a .308, but considering that you will likely not shoot 1500 rounds in ten years of hunting I probably wouldn't be too concerned about barrel life.
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