HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: jrbuff8
New Today: 0
New Yesterday: 0
Overall: 12570

People Online:
Members: 0
Visitors: 73
BOT: 2
Total: 75
Who Is Where:
 Visitors:
01: Forums
02: Forums
03: Forums
04: Forums
05: Forums
06: Forums
07: Home
08: Forums
09: Forums
10: Forums
11: Home
12: Forums
13: Forums
14: Forums
15: Forums
16: Forums
17: Home
18: Forums
19: Forums
20: Forums
21: Forums
22: Forums
23: Home
24: Home
25: Forums
26: Forums
27: Forums
28: Forums
29: Forums
30: Forums
31: Forums
32: Forums
33: Forums
34: Forums
35: Forums
36: Forums
37: Forums
38: Forums
39: Home
40: Forums
41: Forums
42: Your Account
43: Forums
44: Forums
45: Forums
46: Forums
47: Forums
48: Forums
49: Forums
50: Forums
51: Forums
52: Forums
53: Forums
54: Forums
55: Forums
56: Forums
57: Forums
58: Forums
59: Forums
60: Forums
61: Forums
62: Forums
63: Forums
64: Forums
65: Forums
66: Forums
67: Forums
68: Forums
69: Forums
70: Forums
71: Forums
72: Forums
73: Forums
  BOT:
01: Forums
02: Your Account

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 305
 Pictures: 2356
  · Views: 342946
  · Votes: 1306
  · Comments: 85
 

Support our Advertisers

.270 Win or .308 Win
Discussions related to Guns and Firearms
Go to page Previous  1, 2, 3, 4, 5, 6  Next
View previous topic :: View next topic  
Author Message
wiersy111
Super Member
Super Member


Joined: May 13, 2009
Posts: 2348
Location: Central Minnesota

PostPosted: Fri Oct 02, 2009 6:52 pm    Post subject: Re: .270 Win or .308 Win Reply with quote

Great research. I have suspected the same thing but never actually did the research, just tried to keep the brass separate. I guess now I have a reason to check my loads in different brass.

Thanks for the info.

_________________
A veteran is someone who, at one point in his life wrote a blank check made payable to "The United States of America " for an amount of "up to and including my life."

US ARMY RETIRED

The original point and click interface was a Smith & Wesson.

Being "Over the Hill" is much better then being under it!
Back to top
View user's profile Photo Gallery
chambered221
Super Member
Super Member


Joined: Aug 17, 2007
Posts: 3455
Location: Lost for good !!!

PostPosted: Fri Oct 02, 2009 7:12 pm    Post subject: Re: .270 Win or .308 Win Reply with quote

Just keep in mind that the next time you need brass you may find what liked Remington then might like the Federal now!!!

_________________
Ask as many people needed, sooner or later your question will be answered the way you want it answered !!!

A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government.
~George Washington
Back to top
View user's profile Photo Gallery
fnuser
Super Member
Super Member


Joined: Dec 23, 2008
Posts: 914
Location: S.W. Missouri, U.S.A.

PostPosted: Sat Oct 03, 2009 6:45 am    Post subject: Re: .270 Win or .308 Win Reply with quote

I posted that cases comment mostly as a pressure caution as different cases have different volumes, different alloys ergo different pressures. so yes this will affect accuracy. However that load is no where close to max in my chambers, also a determining factor.

_________________
N.R.A. Endowment Member
Back to top
View user's profile Photo Gallery
fnuser
Super Member
Super Member


Joined: Dec 23, 2008
Posts: 914
Location: S.W. Missouri, U.S.A.

PostPosted: Sat Oct 03, 2009 6:50 am    Post subject: Re: .270 Win or .308 Win Reply with quote

Alot of hunters that shoot their game under 200 yrds wouldn't neccesarily have to sort cases, as benchrest accuracy isn't required. Having said that though, I can't imagine anyone cranking out ammunition that is not the best they can do intentionally. To me that is part of the addiction.

_________________
N.R.A. Endowment Member
Back to top
View user's profile Photo Gallery
wiersy111
Super Member
Super Member


Joined: May 13, 2009
Posts: 2348
Location: Central Minnesota

PostPosted: Sat Oct 03, 2009 7:00 am    Post subject: Re: .270 Win or .308 Win Reply with quote

Part of the addition is exactly right.

_________________
A veteran is someone who, at one point in his life wrote a blank check made payable to "The United States of America " for an amount of "up to and including my life."

US ARMY RETIRED

The original point and click interface was a Smith & Wesson.

Being "Over the Hill" is much better then being under it!
Back to top
View user's profile Photo Gallery
slimjim
Super Member
Super Member


Joined: May 16, 2009
Posts: 7414
Location: Fort Worth TX

PostPosted: Sat Oct 03, 2009 7:53 am    Post subject: Re: .270 Win or .308 Win Reply with quote

fnuser wrote:
... different cases have different volumes, different alloys ergo different pressures. so yes this will affect accuracy. However that load is no where close to max in my chambers, also a determining factor.

You can indirectly measure the volume of a case within the same manufacturer by weighting the case. Equal weight = equal volume. I do this when I get my cases and mark the weight on the side to a tenth of a grain. I then repackage them in zip-lock bags in groups of 15 or 20 with matching or similar weights. That way I have matched cases when I introduce a new brass into the loading cycle. For general shooting, I don't think this is necessary. I have had long range shooters say this can be important to accuracy.

I'm addicted!
Back to top
View user's profile
PaulS
Super Member
Super Member


Joined: Feb 18, 2006
Posts: 3482
Location: South-Eastern Washington - the State

PostPosted: Sun Oct 04, 2009 9:11 am    Post subject: Re: .270 Win or .308 Win Reply with quote

An 8 grain difference in case weight is approximately 1 grain of powder difference internally if the cases have been fired and sized.
If the cases have not been fired and sized you can get lower pressures than you might have after firing and sizing because the case will expand until it fills the chamber - slowing the pressure rise.

_________________
Paul
__________________
Speer, Lyman, Hodgdon, Sierra, and Hornady = reliable loading data
So and So's pages on the internet = NOT reliable loading data
Always check data against manuals
NEVER exceed maximum listed loads
Back to top
View user's profile Send e-mail
slimjim
Super Member
Super Member


Joined: May 16, 2009
Posts: 7414
Location: Fort Worth TX

PostPosted: Sun Oct 04, 2009 10:52 am    Post subject: Re: .270 Win or .308 Win Reply with quote

I have one load that is good with fired/necked-sized brass but is consistently better with new brass. I load it up with new brass and then reuse the brass in the other loads. Keeping detailed records of how you load your rounds including brass, COAL, and weather conditions is the only way to track down why things happen. You can only change one thing at a time. If you change more than one aspect, you won't know what contributed to the improvement or regression in performance.
Back to top
View user's profile
PaulS
Super Member
Super Member


Joined: Feb 18, 2006
Posts: 3482
Location: South-Eastern Washington - the State

PostPosted: Mon Oct 05, 2009 12:17 am    Post subject: Re: .270 Win or .308 Win Reply with quote

I often run into a first fired load that gives excellent results in unfired or reformed cases that quickly goes bad when loaded in the same cases with neck sizing. I found that if I work the load up and down I can find the sweat spot for the load in the fired cases.

_________________
Paul
__________________
Speer, Lyman, Hodgdon, Sierra, and Hornady = reliable loading data
So and So's pages on the internet = NOT reliable loading data
Always check data against manuals
NEVER exceed maximum listed loads
Back to top
View user's profile Send e-mail
fnuser
Super Member
Super Member


Joined: Dec 23, 2008
Posts: 914
Location: S.W. Missouri, U.S.A.

PostPosted: Tue Oct 06, 2009 2:16 pm    Post subject: Re: .270 Win or .308 Win Reply with quote

That's good stuff Paul, thanks that 8-1 grain conversion is cool how'd you get that, is that original or had you read it?

_________________
N.R.A. Endowment Member
Back to top
View user's profile Photo Gallery
PaulS
Super Member
Super Member


Joined: Feb 18, 2006
Posts: 3482
Location: South-Eastern Washington - the State

PostPosted: Wed Oct 07, 2009 10:21 pm    Post subject: Re: .270 Win or .308 Win Reply with quote

The "rule" is based on the specific gravity of powder and the specific gravity of the brass alloy that is used in cartridges.
The powder for rifles is very close to the same no matter what brand you use and the differences in alloys is negligeable.
Specific gravity:
powder..... 1.12 (smokeless)
Brass........ 8.45

From a quick glance you can see that the difference is roughly between 7 and 8 to one. If you use the 8:1 ratio you will never go over pressure from adding too much powder. The actual ratio is 7.5446.
Since the specific gravity of the brass is 7.5 times that of powder it takes 7.5 grains of brass to equal the same volume as 1 grain of powder.

NOTE: this information is not meant to be used to guess at a powder charge for a case that does not have data for a given powder - it may not be safe to use in this fashion. IT will help you tune a load for a cartridge that you have worked the load up with one case and you have heavier or lighter cases that you wish to get the same pressure with the same powder.

_________________
Paul
__________________
Speer, Lyman, Hodgdon, Sierra, and Hornady = reliable loading data
So and So's pages on the internet = NOT reliable loading data
Always check data against manuals
NEVER exceed maximum listed loads
Back to top
View user's profile Send e-mail
fnuser
Super Member
Super Member


Joined: Dec 23, 2008
Posts: 914
Location: S.W. Missouri, U.S.A.

PostPosted: Thu Oct 08, 2009 7:22 pm    Post subject: Re: .270 Win or .308 Win Reply with quote

Thanks again

_________________
N.R.A. Endowment Member
Back to top
View user's profile Photo Gallery
wiersy111
Super Member
Super Member


Joined: May 13, 2009
Posts: 2348
Location: Central Minnesota

PostPosted: Thu Oct 08, 2009 8:00 pm    Post subject: Re: .270 Win or .308 Win Reply with quote

This is some good stuff.

And to think I told my high school algebra teacher I would never use that crap after school.

Now here I am trying to learn this stuff because I'm addicted to hand loading.

_________________
A veteran is someone who, at one point in his life wrote a blank check made payable to "The United States of America " for an amount of "up to and including my life."

US ARMY RETIRED

The original point and click interface was a Smith & Wesson.

Being "Over the Hill" is much better then being under it!
Back to top
View user's profile Photo Gallery
Makwa
Rookie Member
Rookie Member


Joined: Oct 08, 2009
Posts: 23

PostPosted: Fri Oct 09, 2009 8:48 am    Post subject: Re: .270 Win or .308 Win Reply with quote

There are certainly worse addictions.............and the way things are going this may well prove to be a good addiction.
Back to top
View user's profile
labmanx3
Rookie Member
Rookie Member


Joined: Dec 11, 2009
Posts: 2

PostPosted: Mon Dec 14, 2009 12:14 pm    Post subject: Re: .270 Win or .308 Win Reply with quote

Most everyone that have posted replies, seem to think that "bigger" is better. It has been proven over the years that "bullet placement" is much more important than the size of the caliber. You could use a 338, and with poor bullet placement loose your animal.
The question was, which is better the 270 or 308. Either one of them is plenty for deer or elk out to as far as 400 yards...as long as you know how your gun shoots and place the bullet in the vitals.
I am 61 years old,and have hunted deer since I was 11...and elk since I was in my 20's. Most all of my hunting has been in the state of Washington for blacktail deer and roosevelt elk. Other than a short stint with a 7mm mag, all of the deer and elk have been taken with a 270, 308, or 30-06. My favorite is the 270 shooting 150 nosler partitions although they all have done well.
Back to top
View user's profile
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Gun & Firearm Discussions
Page 5 of 6
All times are GMT - 7 Hours
Go to page Previous  1, 2, 3, 4, 5, 6  Next



Jump to:  


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Advertisements
 


Valid CSS! Valid HTML 4.01!
Click to check if this page is realy HTML 4.01 compliant for speed :)

All logos and trademarks in this site are property of HuntingNut.com.
The comments are property of their posters, all the rest © 2011 by HuntingNut.com
Interactive software released under GNU GPL, Code Credits, Privacy Policy

.: Upgraded to DragonFly 9.2 by Dizfunkshunal :.