HuntingNut
HuntingNut
   Login or Register
HomeCommunity ForumsPhoto AlbumsRegister
     
 

User Info

Welcome Anonymous


Membership:
Latest: usmcm14
New Today: 1
New Yesterday: 1
Overall: 12472

People Online:
Members: 0
Visitors: 64
BOT: 3
Total: 67
Who Is Where:
 Visitors:
01: Forums
02: Forums
03: PointBlank Ballistics
04: Forums
05: Forums
06: Photo Albums
07: Forums
08: Forums
09: Photo Albums
10: Photo Albums
11: Photo Albums
12: Forums
13: Forums
14: Forums
15: Forums
16: Forums
17: Forums
18: Forums
19: Forums
20: Forums
21: Forums
22: Forums
23: Forums
24: Forums
25: Forums
26: Forums
27: Home
28: Forums
29: Forums
30: News
31: Forums
32: PointBlank Ballistics
33: Photo Albums
34: Photo Albums
35: Forums
36: Forums
37: Forums
38: Forums
39: Forums
40: Forums
41: Home
42: Forums
43: Forums
44: Forums
45: PointBlank Ballistics
46: Forums
47: PointBlank Ballistics
48: Forums
49: Forums
50: Forums
51: PointBlank Ballistics
52: Forums
53: Forums
54: Forums
55: Forums
56: Forums
57: Forums
58: Forums
59: Forums
60: Forums
61: Forums
62: Forums
63: PointBlank Ballistics
64: Forums
  BOT:
01: Forums
02: Your Account
03: Photo Albums

Staff Online:

No staff members are online!
 

Coppermine Stats
Photo Albums
 Albums: 304
 Pictures: 2340
  · Views: 296241
  · Votes: 1302
  · Comments: 85
 

Support our Advertisers

IMR-4350 vs IMR4831
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
Go to page 1, 2  Next
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition

View previous topic :: View next topic  
Author Message
dakota1
Member
Member


Joined: Aug 09, 2007
Posts: 37
Location: Mesa, Arizona

PostPosted: Mon Dec 03, 2007 9:44 am    Post subject: IMR-4350 vs IMR4831 Reply with quote

I am struggling to re-create a load in .270 Win that held sub MOA years ago. I am using IMR-4350. Charges from bottom to top (55 gr). Seating depths from load manual starts to .020 off lands. Bullets have been Sierra 130 gr SPBT GameKing and Speer 130 gr FBSP Hot-Cor. Primers are CCI 200 and brass in WW. The best I have been able to get is 1.50" @ 100 yards. When this load was developed, IMR-4350 and IMR-4831 were the kings of .270 Win powders. I have not used IMR 4831. Since these are both Dupont powders, is there enough of a recipe difference in the two to make the change? Also are there more recent additions to the powder families to try? Do any of the Reloader family of powders lend themselves to .270 Win loading?

Gun is Rem 700 BDL
Load was 55 gr of IMR4350. Bullet was Speer 130 gr BTSP. CCI primer. WW case. OAL of 3.310.

Any suggestions would be greatly appreciated.
Back to top
View user's profile AIM Address
Bushmaster
Super Member
Super Member


Joined: Jun 12, 2005
Posts: 10301
Location: Ava, Missouri

PostPosted: Mon Dec 03, 2007 10:14 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

Take a look at Hogdgon's H4831SC...Some people have had good results with it. I have in my A-bolt .30-06...

_________________
I have one nerve left and yer standin' on it...

DEMOCRACY Two wolves and one sheep voting on what to have for lunch...
LIBERTY A well armed sheep contesting the outcome of the vote...


Last edited by Bushmaster on Mon Dec 03, 2007 11:08 am; edited 1 time in total
Back to top
View user's profile
shrpshtrjoe
Super Red Neck Member
Super Red Neck Member


Joined: Jan 26, 2005
Posts: 2955
Location: Maryland

PostPosted: Mon Dec 03, 2007 10:26 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

I would recomend Hodgdons as well. Here's a link for there data base the charges are the same for H4831 and H4831SC the SC ( short cut) is shorter pcs and meters better. They are both part of Hodgdons Extreme powder line, they are not affected by temp change, It's supose to rock in the 270 Win
data.hodgdon.com/cartr...load_1.asp
Good Luck Very Happy
Joe

_________________
"MOLON LABE"

P E T A
People Eating Tasty Animals
Back to top
View user's profile Photo Gallery
d_hoffman
Super Member
Super Member


Joined: Feb 13, 2007
Posts: 696
Location: Chillicothe, Ohio

PostPosted: Mon Dec 03, 2007 10:42 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

You might even want to take a look at IMR7828.

_________________
The best form of gun control...aim straight!!!
Back to top
View user's profile Send e-mail Yahoo Messenger Photo Gallery
Handloader
Super Member
Super Member


Joined: Aug 22, 2005
Posts: 1032
Location: Phoenix, Arizona

PostPosted: Mon Dec 03, 2007 5:25 pm    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

The advantage of Hodgdon H4831sc is that it is temperature insensitive, at least more so than DuPont. Jack O'Connor loved IMR4831, although, by today's standards his loads were on the hot side, yet, my 24" barreled 270 Win manages 3,180 fps with H4831sc without any pressure signs. Like Bushy and shrpstrjoe I recommend trying it.

Yes, changes in powder can affect group size. The pressure curve will be different and set up different harmonics in the barrel. It is a minor thing for most rifles, however, and presumes the rifle hasn't changed over the years in terms of barrel float or bedding.

Other excellent powders are in the Reloder series with RX19 and RX22 being superb choices.

All that said, some of the rifles I like best aren't too finicky about changes in powder, bullets or velocities and shoot everything accurately. IOW, rifles that are truly particular about load differences can often be due to the rifle itself needed some attention. OTOH 1.5MOA is certainly accurate enough for the vast majority of game.
Back to top
View user's profile
dakota1
Member
Member


Joined: Aug 09, 2007
Posts: 37
Location: Mesa, Arizona

PostPosted: Tue Dec 04, 2007 7:16 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

Thanks for all the advise. I have recently had the gun pillar bedded and barrel floated. That indeed may have changed the barrel harmonics. I have also had a removable muzzle break put on. I have been told that there are different opinions on if this will open up groups due to the way the gas escapes from the end of the barrel. That being said, I am testing groups with the barrel cap on (muzzle brake off)(crown has not been touched). I picked up 1 lb of H4831SC, a box of Sierra 130 gr BTSP, a box of Speer 130 gr BTSP, and a case of CCI 200 primers. Let the games begin.
Back to top
View user's profile AIM Address
Bushmaster
Super Member
Super Member


Joined: Jun 12, 2005
Posts: 10301
Location: Ava, Missouri

PostPosted: Tue Dec 04, 2007 7:25 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

Let us know how the "games" progress...

_________________
I have one nerve left and yer standin' on it...

DEMOCRACY Two wolves and one sheep voting on what to have for lunch...
LIBERTY A well armed sheep contesting the outcome of the vote...
Back to top
View user's profile
A17Shooter
Super Member
Super Member


Joined: Jan 26, 2005
Posts: 323
Location: California Foothills (Gold Country)

PostPosted: Tue Dec 04, 2007 9:29 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

First let me say that I don't load for the 270. But, when checking the Hogdon web site I noted that WW760 and Hogdon H1000 were also listed. I have had success with both powders in other calibers. Of some interest was the H1000 load which had the high velocity and low pressure with the 130 gr bullets.

Good luck with your load work.

_________________
_________________
A17Shooter
Back to top
View user's profile
moose2
Super Member
Super Member


Joined: Mar 19, 2005
Posts: 707
Location: North Idaho

PostPosted: Tue Dec 04, 2007 11:51 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

I use H4831sc along with 130 gr. Sierra's in my Ruger .270. In the Ruger it is a great sub MOA load. Best of luck finding a good load for yours.tr

_________________
tr
Back to top
View user's profile
Doublejs
Member
Member


Joined: Nov 29, 2007
Posts: 137
Location: SW Pennsylvania

PostPosted: Tue Dec 04, 2007 3:58 pm    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

I used to load 50.0gr IMR4831, 140gr Nosler BT, Fed. 210M primer for a Winchester with excellent results. I have since then sold the rifle.
Good Luck in finding the best recipe!
I must admit that I use Hodgdon powders exclusively now though (H4831SC, Varget, & Retumbo).
Back to top
View user's profile Photo Gallery
terry264
Member
Member


Joined: Apr 02, 2005
Posts: 85
Location: Eastern-North Central West Virginia

PostPosted: Tue Dec 04, 2007 7:50 pm    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

dakota 1, I used to groundhog hunt with several guys who loaded the .270 win., and they all used the same load, 56.0 grs. of IMR 4350 with the 130 gr. sierra gameking and could shoot one hole groups with that load. Nowadays there are probably better powder to use than back then, like R-22, which are less temp. sensitive, but they had good results with the imr4350 back then. The load data nowadays doesn't go that high, being lawyer sensitive, but if you increase your load .5 gr. at a time and watch for pressure signs, you might be surprised with the results you get if you just push it hard enough.
Back to top
View user's profile
bradking1
Member
Member


Joined: Mar 03, 2005
Posts: 53

PostPosted: Wed Jan 30, 2008 9:45 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

i know this may be elementary; but have you, by chance, taken all the copper out of your barrel? i have seen rifles that "used to shoot good" and the owners thought the barrel was shot out but in fact the bore was covered in copper. if you haven't taken the copper out just go get a good copper solvent, follow the directions and clean it until the patches turn from blue to clean. my dad had a 270 that was given to him and it was shooting about 4" groups and he thought something was wrong with the rifle...well it was. the barrel was full of copper...after about 2 hrs of scrubbing the copper out we took the rifle to the range and 3/4" groups materialized with factory ammo.
Back to top
View user's profile Photo Gallery
KYGunner
Member
Member


Joined: Dec 08, 2007
Posts: 99
Location: Elizabethtown, KY

PostPosted: Wed Jan 30, 2008 10:18 am    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

Suggest a good copper solvent. I have been trying to find some info on one. I just inherited a gun or two that I suspect need a good scrubbing including the copper removal.

_________________
KYGunner
"You cannot build character and courage by taking away man's initiative and independence"
-Abe Lincoln
Back to top
View user's profile Send e-mail
Gil Martin
Super Member
Super Member


Joined: Jan 28, 2005
Posts: 1613
Location: Schnecksville, PA

PostPosted: Wed Jan 30, 2008 3:56 pm    Post subject: Re: IMR4350 vs IMR4831 Reply with quote

I have used IMR4350 in my .270s for many years and have had superb results. Never saw a need to change. Someday, I may try IMR4831, but not now. All the best...
Gil

_________________
Gil
Back to top
View user's profile
English Mike
Super Member
Super Member


Joined: Jan 08, 2007
Posts: 1150
Location: Whitehaven, Cumbria, UK

PostPosted: Mon Feb 04, 2008 3:01 pm    Post subject: Re: IMR-4350 vs IMR4831 Reply with quote

We've had excellent results with 59.5gr of Hodgdon 4831SC behind a 130gr Hornady SST. MV is just under 3,000fps & five shot groups under 3/4"
Work up to this though - it's close to maximum load.
Back to top
View user's profile
Display posts from previous:   
Post new topic   Reply to topic   Printer Friendly Page    Forum Index » Reloading Ammunition
Page 1 of 2
All times are GMT - 7 Hours
Go to page 1, 2  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 :.