New Member with questions, I have been reloading for about one year now and shoot a Nosler M-48 in a .300wsm. Using Viht N-550 with 59 grains, 180 AccuBond, fps is 2817, and does 1/4 in groups at 100yds, 2.865 COL, I had 600 yds turrets made by Kenton for the above fps. As you guys probably know Viht is hard to find, and I read on an earlier post that H4831SC would be a good powder to use and I also use same powder for my .270 shooting 130 grain BT, under 1/2 inch groups. It would be nice to only have to use one poweder, I like things simple. Any suggestions as to where to start with the 4831SC for my .300wsm to get the same result as above or someting different. Thanks and I know all will drool over the M-48 that I have, will send pic's when I figure all this out.
.300WSM
- Thread starter chipper
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 37,318
- 5,991
Welcome to the forum, chipper. I trust you will find a wealth of information that makes reloading more enjoyable for you than it already is. You certainly have a shooter on your hands. Congratulations. We will enjoy seeing some pictures.
H4831sc is a good powder. I've not used it with the AB, but I have used it with a 180 grain Hornady SP as a break-in load for a variety of rifles. The load I use is almost always sub-MOA in over 30 rifles, so it will likely be a good choice.
The Nosler Reloading Guide lists a minimum of 65.5 grains and a maximum charge of 69.5 grains. Their accuracy load is the minimum, which means that you should anticipate the lowest standard deviation at that charge.
You should be able to get similar velocities with H4831sc that you are now getting with N550. Test a series of loads, beginning with the minimum and working up. I should guess that you will match the velocity you are now getting at the minimum charge. It is not a good idea to drop below this charge just to achieve a lower velocity, however.
Best of luck in finding the load you are looking for. Let us know how it works out.
H4831sc is a good powder. I've not used it with the AB, but I have used it with a 180 grain Hornady SP as a break-in load for a variety of rifles. The load I use is almost always sub-MOA in over 30 rifles, so it will likely be a good choice.
The Nosler Reloading Guide lists a minimum of 65.5 grains and a maximum charge of 69.5 grains. Their accuracy load is the minimum, which means that you should anticipate the lowest standard deviation at that charge.
You should be able to get similar velocities with H4831sc that you are now getting with N550. Test a series of loads, beginning with the minimum and working up. I should guess that you will match the velocity you are now getting at the minimum charge. It is not a good idea to drop below this charge just to achieve a lower velocity, however.
Best of luck in finding the load you are looking for. Let us know how it works out.
You are a lucky guy with that M48. If you look at the load data in the Nosler #6 it should give you a good starting point with the 180gr Nosler. You could also check the load data at the main page of the forums. It should take you right to the link.
http://www.nosler.com/index.php?p=15&b=30cal&s=74
H4831 is a great powder for the 300 Win Mag, and should be just as good as what you are using now. You could also check out the Hogdon data online and see what they say. they are pretty good at breaking out data for all bullet weights. You may wanna check out RL22. It is also another great 270 powder. Either way, good luck. Post up some pictures.
http://data.hodgdon.com/cartridge_load.asp
Oh, I would bet you could get a little more speed out of 180's also. Dr Mike shoots one quite a bit I think, and 2900-3000 shouldn't be any really big trick. You have a magnum, so you might as well make the most out of it. Scotty
http://www.nosler.com/index.php?p=15&b=30cal&s=74
H4831 is a great powder for the 300 Win Mag, and should be just as good as what you are using now. You could also check out the Hogdon data online and see what they say. they are pretty good at breaking out data for all bullet weights. You may wanna check out RL22. It is also another great 270 powder. Either way, good luck. Post up some pictures.
http://data.hodgdon.com/cartridge_load.asp
Oh, I would bet you could get a little more speed out of 180's also. Dr Mike shoots one quite a bit I think, and 2900-3000 shouldn't be any really big trick. You have a magnum, so you might as well make the most out of it. Scotty
6mm Remington
Ammo Smith
- Feb 27, 2006
- 5,240
- 522
Chipper, I load a 270 for a friend and I use 130 gr. Accubonds or Partitions. I use Federal 215 Magnum primers and 59.0 grs for about 3030 fps in a 22" barrel. His Remington MTN rifle shoots 3/4 " groups.
I also load for another buddy with a 300 WSM. His rifle is a Winchester Model 70. With 180 gr. Accubonds and 70 grs. of H4831SC and Federal 215 primers, he gets just slightly over 1/4" groups (3-shot) at 100 yards and 2930 fps. That load does not show any pressure signs in his rifle, but you most certainly would have to work up to it from below by a few grains.
I think it would work very well with both calibers.
I also load for another buddy with a 300 WSM. His rifle is a Winchester Model 70. With 180 gr. Accubonds and 70 grs. of H4831SC and Federal 215 primers, he gets just slightly over 1/4" groups (3-shot) at 100 yards and 2930 fps. That load does not show any pressure signs in his rifle, but you most certainly would have to work up to it from below by a few grains.
I think it would work very well with both calibers.
Big Squeeze
Handloader
- May 29, 2007
- 828
- 0
.........................................Just one powder for the 300 WSM? That would be the simplest, but imo, its good to experiment with three or four. Along with the H-4831SC which is a slower burn than the N550, the H-4350 would also be a great choice, as it has about the same burn rate as the N550 you`re using.chipper":1b10a54c said:
RL 19 and RL 22 seem to be temp sensative, but the new RL17 has been a winner from my 300 WSM and is not temp sensative according to Alliant.
I`ve had very good success with N165, H4350 and RL17.
Each rifle has its own likes and dislikes. So if by chance the H4831 doesn`t give you the results you`re looking for, try the H4350 along with the RL17.
Desert Fox
Handloader
- Aug 14, 2006
- 1,965
- 3
I load for a friend 300 WSM. I used IMR 4831 with 168 grain Barnes. Excellent powder for the 300 WSM.
- Thread starter
- #7
Lots of varibles and thanks all for the imput, I am using wincherter brass and wlrm primers, is 4831 and 4831sc the same except the later just a shorter version. The 4831sc shoots great in the .270 I don't have my notes with me or I would give the recipe, I will chcek and post it later on. It shoots under a 1/2 inch on my good days. Thanks agin, chipperDesert Fox":lideqaeb said:
Alaska
Handloader
- Aug 20, 2006
- 943
- 379
My win 70 300 WSM
Sure likes
H4350 @ 63.0
175gr Sierra MK
Fed 210M
WW Brass
Sure likes
H4350 @ 63.0
175gr Sierra MK
Fed 210M
WW Brass
- Thread starter
- #9
Ok, guys I think I have narrowed it down to H4350 or IMR4350, Nosler manuel does not list H4350, is there that much difference, I understand that H4350 is not as temperature sensitive as IMR4350. I do have some H4831SC on hand so I will give that a try also, who knows it could be the one. Have not taken any pics yet as I am waiting to go to the range. Thanks for all your help, Chipper
Alaska
Handloader
- Aug 20, 2006
- 943
- 379
The New Reloader 17 is made for WSM . I noticed 150gr TSX bullets over 3200 FPS in the 300 WSM with RL 17.
IMR 4831 @ 69.0 with 165gr AccuBond work good.
ONE poWDER FOR THE 300 wsm H4350 @ 63.0 WITH 175 MK and WW brass with Fed 210M primers........excellent load!
IMR 4831 @ 69.0 with 165gr AccuBond work good.
ONE poWDER FOR THE 300 wsm H4350 @ 63.0 WITH 175 MK and WW brass with Fed 210M primers........excellent load!
big rifle man
Handloader
- Dec 21, 2005
- 850
- 0
Chipper, I ran a number of different powders through my .300WSM and settled on RE22. When shooting this powder the air temperature was 85 degrees. My velocity was 3005FPS with a 180 Sierra pro hunter. I then shot it again approximately two weeks ago with the temperature at 48 degrees. Surprise surprise, the velocity was down to 2950. RE22 is definitely temperature sensitive. I then ran 64 grains of IMR4350 with the same bullet and found velocity had dropped only 9FPS from 3014 to 3005. I shudder to think what the velocity of the RE22 would have been had I been Elk hunting in Colorado with a morning temperature of 6-7 degrees. I'm going to stay with IMR4350 as accuracy with the above bullet is on the order of 3/4 of an inch at 100yds. I'm using 64 grains with a Norma case and Fed 215M primer. My kimber loves this load and its not a max load.
- Thread starter
- #12
Big Rifle man, That is the powder that is my favorite now, (IMR 4350) as in my earlier posts i am trying to match as close as i can with what I am using now because of my turret set up, it should not make a big difference if it goes up a little, I have a little H4831SC on hand and I will load some test to see how it does. I have really been beating myself up over this, I don't want to have a big expense in buying several powders, I would rather buy bullets and shoot. Chipper
6mm Remington
Ammo Smith
- Feb 27, 2006
- 5,240
- 522
Chipper, I believe IMR4350 or H4350 will work great, or have the potential to work great with the 180 gr. AccuBond in the 300 WSM. They did not in my friends rifle though, but what did work, worked magic!
Winchester cases, Fed 215 primers, 70.0 grs. of H4831SC. 2936 fps with 1/4" group- 3-shots. Max load but no pressure signs.
Winchester cases, Fed 215 Primers, 65.5 grs. of IMR4831 2930 fps with just under 1/2" 3-shot groups. About a medium load according to the book.
Both loads shot great, and shot to the same point of impact. The harmonics must just have clicked and the God's smiled on us.
Winchester cases, Fed 215 primers, 70.0 grs. of H4831SC. 2936 fps with 1/4" group- 3-shots. Max load but no pressure signs.
Winchester cases, Fed 215 Primers, 65.5 grs. of IMR4831 2930 fps with just under 1/2" 3-shot groups. About a medium load according to the book.
Both loads shot great, and shot to the same point of impact. The harmonics must just have clicked and the God's smiled on us.
