Print Page | Close Window

.270 win 140 gr partion

Printed From: OpticsTalk by SWFA, Inc.
Category: Firearms, Bows, and Ammunition
Forum Name: Reloading & Ballistics
Forum Description: Anything to do with ammunition
URL: http://www.opticstalk.com/forum_posts.asp?TID=22882
Printed Date: August/03/2020 at 17:50
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com


Topic: .270 win 140 gr partion
Posted By: little cleo
Subject: .270 win 140 gr partion
Date Posted: March/29/2010 at 23:21
 Does anyone have  good  reciepe for loading up some 140 gr. Nosler partioner .270 win. shells? I would like to keep them at least at 3000 fps. I am going out west and Alberta for whitetail deer this year.  I like 140 gr .270 loads but nobody factory makes them in a Nosler partion bullet.  130 and 150 but not 140's.  Thanks for any input.



Replies:
Posted By: SVT_Tactical
Date Posted: March/30/2010 at 06:40
Looking at my Lee reloading manual they fastest I see listed it xmr-4850 @ 56gr pushing 2988fps   thats the upper end, trail and error will be the only way to figure out what your gun will do.  What length barrel do you have, it will play a factor in increasing FPS too.

-------------
"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln


Posted By: 300S&W
Date Posted: March/30/2010 at 07:24
 
  My Nosler #4 shows 3003 fps (Ballistic Tip) w/a max load of RL19 out of a 24"bbl.


-------------
"I ain't got time to bleed!"


Posted By: lucytuma
Date Posted: March/30/2010 at 19:41
Nosler manual #6 shows 58gr h4831sc @ 3000, 55gr RL19 @ 3003, 53gr W760 @ 3018. 

-------------
"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." - Thomas Jefferson


Posted By: little cleo
Date Posted: March/30/2010 at 20:52
Thanks for the input .  Will I pick up much speed going to a 130gr. partioner?


Posted By: 300S&W
Date Posted: March/31/2010 at 06:59
 Probably 100 fps or so.

-------------
"I ain't got time to bleed!"


Posted By: SVT_Tactical
Date Posted: March/31/2010 at 07:05

Even with all this data, only your gun will tell you what it will do,  You need to reload and test with a chrony to know what it will do and what will be to much pressure.



-------------
"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln


Posted By: 300S&W
Date Posted: March/31/2010 at 07:50
 
 +1 !
 
  Talk about startin' a heated discussion.  Mention to some about using a chronograph to develop loads. 
 
  Seems 3100 fps w/130's is USUALLY doable.  I got a real accurate load @ an average of 3112 fps out of a 22" bbl Rem 700 and good case life.


-------------
"I ain't got time to bleed!"


Posted By: SVT_Tactical
Date Posted: March/31/2010 at 07:52
I usually find the bullet the gun likes best and then fine tune the powder a little.  Then again I like to try all kinds of bullets still so I find one load that shoots well and then play with others still keeping the gravy load for comparisons, and Zombies lol

-------------
"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln


Posted By: 300S&W
Date Posted: March/31/2010 at 08:20
 That'll work! 
 
 I'm kinda of a one bullet/load per rifle kinda guy.  Except for my .300 which I have 150gr and 180gr loads for. 


-------------
"I ain't got time to bleed!"


Posted By: pyro6999
Date Posted: March/31/2010 at 09:11
i myself worry more about accuracy as opposed to speed, usually the hottest loads wont be the most accurate.

-------------
They call me "Boots"
375H&H Mag: Yeah, it kills stuff "extra dead"

343 we will never forget

God Bless Chris Ledoux
"good ride cowboy"


Posted By: 300S&W
Date Posted: March/31/2010 at 09:20
  No doubt.  But it seems alot that if the accuracy is going to happen it starts showing up as you approach max.

-------------
"I ain't got time to bleed!"


Posted By: pyro6999
Date Posted: March/31/2010 at 09:24
ive only had maybe two guns in my life that shot there most accurate groups at or near max, the rest were always a few grains below.

-------------
They call me "Boots"
375H&H Mag: Yeah, it kills stuff "extra dead"

343 we will never forget

God Bless Chris Ledoux
"good ride cowboy"


Posted By: SVT_Tactical
Date Posted: March/31/2010 at 09:26
now are you saying max as in starting to see pressure signs or max as in what the book recommends?

-------------
"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln


Posted By: pyro6999
Date Posted: March/31/2010 at 09:29
pressure signs for me, most of my guns have shot pretty well with published max's over the years.

-------------
They call me "Boots"
375H&H Mag: Yeah, it kills stuff "extra dead"

343 we will never forget

God Bless Chris Ledoux
"good ride cowboy"


Posted By: SVT_Tactical
Date Posted: March/31/2010 at 09:31
I have noticed the published max in my Lee book come no where near signs for me.  i am a full grain  over and still no signs.

-------------
"Most folks are about as happy as they make their minds up to be" - Abraham Lincoln


Posted By: pyro6999
Date Posted: March/31/2010 at 09:33
noslers book is hot i will tell you that, some of those loads i couldnt even fit in my .375H&H cases.Shocked

-------------
They call me "Boots"
375H&H Mag: Yeah, it kills stuff "extra dead"

343 we will never forget

God Bless Chris Ledoux
"good ride cowboy"


Posted By: 300S&W
Date Posted: March/31/2010 at 09:36
  For me? Max is when my chrono starts showing signs of diminishing returns(I like to refer to it as the load becoming unstable)as far as the powder charge is concerned.  Very low velocity increases or actually a drop in velocity.  This has worked for me for YRS and has given me top notch loads w/GOOD casing life(means alot when you have to make your casings).

-------------
"I ain't got time to bleed!"


Posted By: lucytuma
Date Posted: March/31/2010 at 14:46
Some times a compressed load will provide the best accuracy.

-------------
"The democracy will cease to exist when you take away from those who are willing to work and give to those who would not." - Thomas Jefferson


Posted By: 300S&W
Date Posted: March/31/2010 at 15:41
 
  Thunbs Up  Seems the higher % of load density the better chance of accuracy if the powders not to slow to provide the right velocity that'll produce that accuracy.


-------------
"I ain't got time to bleed!"


Posted By: little cleo
Date Posted: April/11/2010 at 01:07
Thanks for all the input


Posted By: little cleo
Date Posted: April/12/2010 at 22:20
I just got through reading a post on mag primers vrs large.  Do you guys think I should use mag primers and stay just a little under max?  I have never heard that about using mag primers in cold weather.  I will be hunting Alberta in Nov.


Posted By: ckk1106
Date Posted: April/12/2010 at 22:24
I would use regular large rifle primers.


Posted By: 300S&W
Date Posted: April/13/2010 at 05:40
  Maybe just me,but when I know I'm going to be approaching 60gr of powder in a cartridge I'll use mag primers.

-------------
"I ain't got time to bleed!"


Posted By: little cleo
Date Posted: April/21/2010 at 15:26
I had a friend reload me some 140 gr. 270 partioners.  We are still working up but right now at 57.2gr of H4831sc  the gun shot a real nice consitent 3 shot  group.  The speed was 2890.  We are going to reload a little hotter but I was pretty happy right now. Oh we used cci large rifle primers



Print Page | Close Window

Forum Software by Web Wiz Forums® version 12.01 - http://www.webwizforums.com
Copyright ©2001-2018 Web Wiz Ltd. - https://www.webwiz.net