New powder oppinions

[ShootSavage]

I've been using H-4831 for my 300 win mag with 165 gr Hornady A-Max and GMX bullets , since I started reloading. I'm considering a heavier bullet, most likely 200 gr and I'm wondering if you have any ideas on powder for this caliber, bullet weight combo. What do you recommend.

 

[skidderman]

Reloader 22 worked very well for both with 180 and 200 grain accubonds.

 

[hunters home]

As skid said RL 22 is a great 300 Win mag powder as is imr 7828. This is what I use in mine with 200 gr bullets. A max load gets me appx 2900 ft/sec.

 

[Ron AKA]

I've been using H-4831 for my 300 win mag with 165 gr Hornady A-Max and GMX bullets , since I started reloading. I'm considering a heavier bullet, most likely 200 gr and I'm wondering if you have any ideas on powder for this caliber, bullet weight combo. What do you recommend.

I have been using H4831 for about 50 years now. My hunting friend also uses it in his 7mm Remington Mag. It is the old reliable powder for those big cases. That said especially for the 200 grain bullet there probably are better powders for your 300 WM. I would stick with a Hogdon Extreme powder for the temperature insensitivity. But, you can go slower in burn rate. H1000 would give you a step up in velocity on both the 165 and 200 grain bullets. And for the 200 grain, Retumbo would give you even a touch more than H1000. See the Hogdon Load Data site for min max load data.

 

[hometownhero]

I would go h1000 or retumbo. Might consider 7828 too.

 

[Purple shoulder]

H1000 with 165 grain bullets will require significant compression. 180's and up its great.

 

[ShootSavage]

I have been using H4831 for about 50 years now. My hunting friend also uses it in his 7mm Remington Mag. It is the old reliable powder for those big cases. That said especially for the 200 grain bullet there probably are better powders for your 300 WM. I would stick with a Hogdon Extreme powder for the temperature insensitivity. But, you can go slower in burn rate. H1000 would give you a step up in velocity on both the 165 and 200 grain bullets. And for the 200 grain, Retumbo would give you even a touch more than H1000. See the Hogdon Load Data site for min max load data.

Thanks juys. H1000 and Retumbo are the two that I was considering, but I'm not locked in yet, so to speak, same with H4831, I haven't had any problems with that other then it's a bit dirty and that's just a bit more cleaning. Just want to know what others are using and how they find it. I'm open to any and all input. So please keep your opinions coming. Advice from people who know allot more then me is always welcome. I've only been reloading for about 5 years.
Gotta add that I'm definitely uping bullet weight from 165s to 200 gr.

 

[Ganderite]

Try the 200 with 4831. I use 70 gr of 4831SC for about 3,000 fps. If it groups well for you, stop thinking about another powder. No other powder would give significantly higher velocity.

If 4831 groups well, you are done. If it does not work, I would try RL22. I find it cleaner.

 

[blauber]

I tried the new IMR 7977 in my 7mm Rem Mag with 162 gr bullets. It is marketed as a magnum powder so might be a good one to try.

 

[BCBRAD]

I like H-1000 with 200-210gr bullets. But, there are other good choices as mentioned.

 

[ShootSavage]

Try the 200 with 4831. I use 70 gr of 4831SC for about 3,000 fps. If it groups well for you, stop thinking about another powder. No other powder would give significantly higher velocity.

If 4831 groups well, you are done. If it does not work, I would try RL22. I find it cleaner.

Makes sence, the only reason I'm considering another powder is because of the H4831 leaves alot of mess behind which takes a bit more elbow grease, plus getting the carbon off the case necks in a pain.

 

[Ron AKA]

Makes sence, the only reason I'm considering another powder is because of the H4831 leaves alot of mess behind which takes a bit more elbow grease, plus getting the carbon off the case necks in a pain.

Carbon on the outside of your case neck can be a sign your brass needs annealing.

 

[ShootSavage]

Carbon on the outside of your case neck can be a sign your brass needs annealing.

I should have been more clear, it's on the inside of the neck, but then you have to deal with that no matter what powder you use, still a pain though.
Plus I was thinking with another powder there may not be so much.

 

[hometownhero]

I should have been more clear, it's on the inside of the neck, but then you have to deal with that no matter what powder you use, still a pain though.
Plus I was thinking with another powder there may not be so much.

Get a stainless tumbler set up. No need to worry about it being a pain.

 

[Eagleye]

If you can find it, another very good candidate for those 200's is Norma MRP. I reach 3000 and pennies in 2 different 308 Norma Magnums,
the ballistic twin to the 300 Win Mag. I have also used Reloder 26 to get similar performance. Dave.

 

[legi0n]

RL25 works very well with heavy bullets in 300WM

 

[freire]

I have tried 3 or 4 different powders on my 300 win with 180 gr bullets and the best powder for me was IMR 7828.

 

[bigbull]

There are a few good powders, but some of the standby's are IMR 7828, IMR 4350, H4831 and H1000, of coarse there are others but try these first.
200 grain bullets I would say Sierra 200 SBT or Accubonds.
bb

 

[ShootSavage]

There are a few good powders, but some of the standby's are IMR 7828, IMR 4350, H4831 and H1000, of coarse there are others but try these first.
200 grain bullets I would say Sierra 200 SBT or Accubonds.
bb

Yea I was looking at some hogdon reloading data today and was impressed with H1000 and Hybrid 100V

 

[ShootSavage]

Was looking at Higginsons site today, I know I haven't ordered powder for atwo or three years now but what the hell happened to the prices, Holy crap $39 a pound!!! What'd I miss?