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Joined: Jan 2012
Posts: 75
Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Jan 2012
Posts: 75 |
Getting ready to start loading for my 338Fed and need some brass. Going to use .308 brass and want to know what brand of brass has the most internal capacity. Thanks.
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Joined: Nov 2008
Posts: 8,663
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2008
Posts: 8,663 |
Slight variations in manufature do occur causing the capacity to go up or down a little, but 53.5 should be ballpark for just about all.
Swifty
Swifty
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 44,860 Likes: 4 |
WW is roomier than most others.
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Joined: Jul 2001
Posts: 60,149 Likes: 11
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,149 Likes: 11 |
And it doesn't make any practical difference at all.
I used to be one of those who chased brass with the most volume--which means the lightest brass. Did it in the 7x57 for years, always buying Winchester.
Then I figured out the 4-to-1 Rule: Any difference in case capacity results in 1/4 of that percentage in velocity, at the same pressure.
It's very rare to find a difference of more than 4% in powder room between brands of brass. This means a difference in potential velocity of 1% AT MOST--or about 25 fps in a typical .338 Federal load, or 30 fps in a typical .270 Winchester load.
If 25-30 fps is a big deal to somebody, then they should go for it. Personally, I quit worrying about it years ago.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck
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Joined: Jan 2006
Posts: 19,816 Likes: 1
Campfire Ranger
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Campfire Ranger
Joined: Jan 2006
Posts: 19,816 Likes: 1 |
J B Hodgdon used to use Remington brass for hunting in his .270 reloads because it was thicker and he didn't load hot to begin with. Might be some kind of lesson there, or maybe not. Not for me anyway as I still used Winchester full up, just because it worked. I'm sure the difference is modest to say the least.
Different strokes....
"Be sure you're right. Then go ahead." Fess Parker as Davy Crockett
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Joined: Apr 2001
Posts: 28,277
Campfire Ranger
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Campfire Ranger
Joined: Apr 2001
Posts: 28,277 |
Many moons ago I had a wonder, so I loaded up my .270 with the everything the same etc two diff kinds of brass. I used W-W and R-P. My theory was that the heavier/thicker R-P would give me more pressure hence speed. It was a one time test and at least that one time it worked out just as I had thought.
Dober
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
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Joined: Jul 2001
Posts: 60,149 Likes: 11
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,149 Likes: 11 |
Mark,
Yeah, thicker brass will result in slightly higher pressure and hence velocity with the same load.
You can also back the load down a grain or so and still maintain the same velocity as with higher-capacity brass, getting about 15 more 7mm Mashburn powder charges out of an 8-pound jug.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.”
John Steinbeck
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Joined: Apr 2001
Posts: 28,277
Campfire Ranger
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Campfire Ranger
Joined: Apr 2001
Posts: 28,277 |
Now that's being efficient....grin
Dober
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
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Joined: Aug 2010
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,106 Likes: 8 |
Mark,
Yeah, thicker brass will result in slightly higher pressure and hence velocity with the same load.
You can also back the load down a grain or so and still maintain the same velocity as with higher-capacity brass, getting about 15 more 7mm Mashburn powder charges out of an 8-pound jug. That's why they pay him the big bucks.... 
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Jan 2012
Posts: 75
Campfire Greenhorn
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OP
Campfire Greenhorn
Joined: Jan 2012
Posts: 75 |
So then maybe I should just pick up some factory .338 Federal brass from Midway?
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Joined: Oct 2000
Posts: 30,286
Campfire 'Bwana
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Campfire 'Bwana
Joined: Oct 2000
Posts: 30,286 |
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
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