I'd give H4831sc a try...works better than H1000, RL 26 in my Rem. 700...
Reloading 300 Win Mag
- Thread starter EE_Reloader
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Huggy you might try Brownells/Sinclair site, I believe I have seen it on there a few times. I actually had ordered some from them until I realized that it was the standard brass and I called and cancelled it. That was several months ago but might be worth a look anyway.
H4350 works ok in lighter weight bullets, but my particular rifle has a tight chamber and a 26" Kreiger barrel that prefers heavier bullets and H1000, RL26, and surprisingly IMR4350 for the 180 class Nosler BT and AB.
It seems that H1000 and RL 26 is increasingly difficult to find these days. Hopefully I can trade for it here in Michigan.
RL26 is available here where I'm at, just picked up 2 more lb yesterday for $34 each. My LGS has also had H1000 and a little H4350 but he wants more than I am willing to pay at this point in time. Hopefully it will come down a little in the future, or maybe not, no one knows for sure.
chuckmaster
Well-Known Member
EE_Reloader I understand your concerns and worries of the belt bump, as I had these same fears when I first started researching on this caliber. I use Norma brass and have 6 reloads on this brass and have not had one issue. I would safe my money on the Willis die and spend the money on a good set of dies. I typically use Redding Competition dies, but bought the Forster Bushing Bump Neck Sizing die for the 300 Win Mag. I haven't tried any H4350 or H4831, but can tell you the my Cooper really likes 168gr SMK with H4831SC and 208gr Hornady with H1000 and Retumbo. The velocity on the Retumbo is insane! I didn't a lot of testing with primers and found that Fed Mag Match gives best consistency and results.
I won the Cooper Long Rand Open Country at the Cooper One Shot East competition in 2019. I always wanted a 300 Win Mag, but never could justify in buying one. Cooper guarantees that all their guns will shoot .500" groups at 100yds. I can tell you that I have achieved some really great groups with the 208gr bullets, the best being .098" on a 4 shot group at 200yds. That's a .406 hole minus the .308. Good luck !
Thank you for your answer chuckmaster. Very informative and detailed.
Frank in the Laurels
Well-Known Member
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For hunting cartridges I just make the die flush with the shell holder and have never had an issue in 50++ years...your not benchrest shooting at game...an inch difference matters little..
ShtrRdy
Well-Known Member
Do you set up the resizing die for a belted magnum case this way?
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Not saying the "bulge" never happens, but I suspect it is most often developed by over pressured loading practices, or a problem resulting from trying to use brass previously fired in another (i.e. larger) rifle chamber.
larry willis dye will fix belt bulge with no problems. Great little dye.
works great and have got to the point I do all my belted magnum with it.
along with bumping back .002 th.
Innovative Technologies - Reloading Equipment
Our patented resizing die can reload Winchester, Remington and Weatherby belted magnums up to 20 times, instead of just 2 or 3 times and the top of the die is a chamber width gauge.
www.larrywillis.com
So I was able to secure some more H4350, 3 boxes of 220 grain eldx's, and 1 box of 200 grain eldx's. What are people's opinion on shooting 220's vs 200's. Should I maybe try to trade the 220's for more 200's or will I be able to get adequate velocity out of the 220's with H4350? I wish I could get my hands on some H1000 or RL26 but for now this is what I have to work with. Thoughts?
ShtrRdy
Well-Known Member
It sounds like your limited by powder type? H4350 isn't going to get you as much velocity. Looking at the Hodgdon loading data, and using a 200 grain bullet, your velocity will be around 2740 fps.
