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Joined: Apr 2016
Posts: 6
New Member
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OP
New Member
Joined: Apr 2016
Posts: 6 |
Greetings,
I am soon to begin reloading for the first time and would like any input regarding additional powder options for the 300 Win Mag cartridge. I have H1000 and IMR Enduron 7977 on hand at the moment. While I have read quite a bit and the Reloder powders sound interesting I live in the north and temperature stability is an important consideration to me (load work up in warmer weather and hunting in cold).
IMR 7828 and Retumbo are on my radar but I'd appreciate any thoughts from you all regarding which one or two additional powders I should consider for load development purposes.
Also, in case it may alter a recommendation I should add that these loads will be shot through a 26" barreled custom rifle throated for heavy for caliber bullets such as the 212 Hornady ELD-X and 215 Berger Hybrid.
Thank you.
R
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Joined: Jan 2010
Posts: 189
Campfire Member
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Campfire Member
Joined: Jan 2010
Posts: 189 |
I think you are on the right track. H1000 is my current favorite in my .300 Win Mag but 7828 and Retumbo would be my next two choices. Especially with the heavier bullets Retumbo might get a bit more velocity.
I know a lot of guys love RL22 in that caliber and I have shot a bit of it but haven't had the best luck with it personally. Also, like you mention, RL22 is very temperature sensitive if that bothers you but honestly it usually isn't an issue unless shooting really far in extreme temperatures.
If you were running a little lighter bullets I really like IMR 4350.
Good luck
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Joined: Sep 2005
Posts: 7,132
Campfire Tracker
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Campfire Tracker
Joined: Sep 2005
Posts: 7,132 |
While I've pretty much found R22 instability claims to matter not in the real world, H4831 will give what you desire.
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Joined: Sep 2009
Posts: 5,567
Campfire Tracker
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Campfire Tracker
Joined: Sep 2009
Posts: 5,567 |
W780 was designed for that cartridge. Meters beautifully and is also great in the 300 winmag. also less erosive than stick powders. magnum primers required.
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Joined: Dec 2006
Posts: 5,932
Campfire Tracker
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Campfire Tracker
Joined: Dec 2006
Posts: 5,932 |
I've had great luck with H4831
When I die I hope I don't start voting democrat.
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Joined: Jul 2001
Posts: 60,206 Likes: 26
Campfire Kahuna
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Campfire Kahuna
Joined: Jul 2001
Posts: 60,206 Likes: 26 |
mnimrod,
The problem with Reloder 22 (and other rather temperature-sensitive powders) isn't always just in longer-range shooting. Some rifles will change point of impact significantly even at 100 yards from 70 Fahrenheit to zero. I've seen three inches twice during my testing, and 1-2 inches isn't uncommon. Usually the rifles that do this are those that also change POI significantly with a change of a grain or two in the powder charge while working up loads.
This may not seem like much but the shift will be three times as much at 300 yards.
“Montana seems to me to be what a small boy would think Texas is like from hearing Texans.” John Steinbeck
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Joined: Feb 2009
Posts: 11,921
Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2009
Posts: 11,921 |
You did not state what weight bullets you were going to shoot but i would look into RL-17.
It does some nice work in the 300 short mag from 130 to 190 grain bullets.
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Joined: Mar 2006
Posts: 3,237
Campfire Tracker
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Campfire Tracker
Joined: Mar 2006
Posts: 3,237 |
1+ on Reloder 17. It appears to be temperature stable, and I've found it to give great top end velocities with 150-180gr bullets.
molɔ̀ːn labé skýla
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Joined: Aug 2010
Posts: 48,235 Likes: 27
Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,235 Likes: 27 |
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Jan 2010
Posts: 8,060 Likes: 9
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2010
Posts: 8,060 Likes: 9 |
I'm running RL25 in mine, but RL26, RL22, and RL23 all would work fine. Data is a little limited for RL23 and 26, but Alliant does have some online now.
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Joined: Aug 2009
Posts: 96,162 Likes: 3
Campfire Oracle
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Campfire Oracle
Joined: Aug 2009
Posts: 96,162 Likes: 3 |
Try the two you have on hand before trying another powder.
Life Member SCI Life Member DSC Member New Mexico Shooting Sports Association
Take your responsibilities seriously, never yourself-Ken Howell Proper bullet placement + sufficient penetration = quick, clean kill. Finn Aagard
Ken
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Joined: May 2003
Posts: 20,494
Campfire Ranger
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Campfire Ranger
Joined: May 2003
Posts: 20,494 |
H4831SC works well, as does RE-22. I live and hunt in NWOntario, so at least some of my hunting is done at or below zero degrees. My 300 kills moose dead at any temperature.
"Keep thy heart with all diligence; for out of it are the issues of life." (Prov 4:23) Brother Keith
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Joined: Sep 2006
Posts: 2,561
Campfire Regular
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Campfire Regular
Joined: Sep 2006
Posts: 2,561 |
Ramshot Magnum has worked well for me ..
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Joined: Nov 2010
Posts: 37,219 Likes: 9
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2010
Posts: 37,219 Likes: 9 |
W780 was designed for that cartridge. Meters beautifully and is also great in the 300 winmag. also less erosive than stick powders. magnum primers required. "Stool Research" is Larry Root by yet another name... Larry, the .300 Win Mag was the OP's designated round... "...also great in the .300 winmag"...??
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Joined: Sep 2009
Posts: 5,567
Campfire Tracker
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Campfire Tracker
Joined: Sep 2009
Posts: 5,567 |
W780 was designed for the 300 WSM. Meters beautifully and is also great in the 300 WinMag. also less erosive than stick powders. magnum primers required. "Stool Research" is Brian by yet another name... There DF corrected. too bad YOU have no experience/advice with the cartridge. chasing around the site, pirating threads, thinking you know something you do not.
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Joined: Dec 2001
Posts: 3,873
Campfire Tracker
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Campfire Tracker
Joined: Dec 2001
Posts: 3,873 |
For 180's I would try H4831, IMR4350. For 200's, H1000 and H4831 are my picks.
Good Shooting!
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Joined: Dec 2014
Posts: 245
Campfire Member
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Campfire Member
Joined: Dec 2014
Posts: 245 |
I've had great luck with 180's & 190's with both H4831 and H1000.
I read in a couple places where Mule Deer had written about the consistency of 75g of H4831 pushing a 180. In 3 different 300's I load for this has been a very consistent and accurate load. I've also had very low ES & SD's with it.
H1000 hasn't been far behind in either department, and it has delivered a touch more speed.
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Joined: May 2014
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Campfire Outfitter
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Campfire Outfitter
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I prefer classic. Semper Fi I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally
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Joined: Aug 2010
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,235 Likes: 27 |
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Mar 2007
Posts: 1,402
Campfire Regular
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Campfire Regular
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