300 win mag 200g

Hank Hunter

Beginner
May 14, 2006
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Have 200g Partitions and Accubonds that I would like to load.Powders I have available are RL22,25,Imr and H4831, H4350,H1000. All seem that they would get the job done depending on what my rifle prefers. Trying to figure out where to start and wondering what experienced advice you can give me.
 
I've had really good results with RL25, 200 PTs and the 300 Win. With H1000 on hand is really give that a good look. Like you said, the powders you have will all work fine. They are all in the right spot to get good speeds. Please let us know how you do.
 
SJB358 is correct in noting that the powders you have available will work wonderfully with the 200 grain bullets. Use the published data Nosler provides to work up your loads, and you'll be golden.
 
I would look no further than RL 25 and H1000. Both are great powders in the 300 Win Mag.

JD338
 
I had excellent results with the IMR 4831. I couldn't get the accuracy that I wanted until they were loaded warm. The H 4831 also worked extremely well for me.
 
My go to is 77-grs H1000 and 200 gr NAB! Fast and deadly accurate. H4831 has worked well too.
 
H4831 Will get you in the 2800fps range. It may take a bit more than Nosler lists as maximum but Hodgdon data shows a bit more powder to max. I have killed several Elk with the 200gr Partition at 2800fps and it is very effective. Some rifles may get 2900fps but None of mine have.
 
I thought I was happy with my .300 Win mag until I started using 200 gr bullets... Then it really came alive!

That was a long time ago, and I don't even have a .300 Win mag anymore, but my goodness it shot well with 200's.

My "pet" powder for it was 7828, but any of the powders you listed should do well.

Regards, Guy
 
Thanks guys,gonna start with nosler recommended H4831 and stack it up against RL22.Will post my results.
 
Hank Hunter":28fgc8ur said:
Thanks guys,gonna start with nosler recommended H4831 and stack it up against RL22.Will post my results.

Nosler shows some great data for the 200's. I'm begging you won't be disappointed in the least. Those big 200's moving out around 2850-2900 carry a lot of freight.
 
Here's another load.

I was working with my 300 Win. Mag. Loading 200 grain Nosler A/B Trying RL-23, I found my sweet spot at 71.0 grains of powder, WLRM primers MV 2867fps. Groups were .292 and .298 @ 100 yards.
I was able to go past 71.0 grains of powder. I went up to 72.3 I started to see a wee bit of PSI signs, so I backed it down to 71.0 with no sign of PSI. It shot great right there.
My rifle has a 24 inch Shilen barrel.

Have a good day.

Edit Note: I was using Nosler brass.
 
Hammerdown":3gotysc0 said:
Here's another load.

I was working with my 300 Win. Mag. Loading 200 grain Nosler A/B Trying RL-23, I found my sweet spot at 71.0 grains of powder, WLRM primers MV 2867fps. Groups were .292 and .298 @ 100 yards.
I was able to go past 71.0 grains of powder. I went up to 72.3 I started to see a wee bit of PSI signs, so I backed it down to 71.0 with no sign of PSI. It shot great right there.
My rifle has a 24 inch Shilen barrel.

Have a good day.

Edit Note: I was using Nosler brass.

Dang, that sounds like a great load.
 
I have always wanted to try Nosler's 200gr AB in my 300 H&H. I like Noslers 180gr AB but next time I go Bear hunting I might have to buy a Box of them.
 
Those 200 ABs are really danged impressive. Seen them out of the RUM and 300 WBY. Seem to be really heavily built hunting bullets. They knock the tar outta elk, that's for certain..
 
Here is a picture of my rifle. It's a Brown Precision Rifle. Now, it has a Leupold VX6 2-12X42 with some Talley Lt.weight mounts.

 
Finally got around to 200 AccuBond with 72.5g RL22. Looks very promising. 3 shot group at 100 yds. = 0.674". The 200 Partition with 70.5g H4831 was OK but 100 fps slower and not quite as tight. Thinking this one will work for Elk or Moose.

Statistics/Velocity Report

String #: 1
High Velocity: 2943
Low Velocity: 2936

Average Velocity: 2940
Extreme Spread: 7
Standard Deviation: 4

Velocity # Velocity
1 2943
2 2943
3 2936
 
Yeah, I'd be okay with that load!!

2950 with the 200 AB is some serious medicine.
 
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