Anybody have any data to share on this combo?
300 win mag Berger 205 and RE-26
- Thread starter MTbackwoods
- Start date
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Figured I'd try H4831 SC first and I was not disappointed. Figured I'd add my findings here after my ladder test yesterday. Brass is virgin Peterson long 300 win mag, Fed 215 GMM, and H4831 SC. CBTO was 2.875 with a .015" jump.Velocity was as follows
69 gr - 2,822
69.5 - 2,855
70 - 2,871
70.5 - 2,878
71 - 2,919
71.5 - 2,934
72 - 2,960
72.5 - 2,962
73 - 2,981
73.5 - 3,021
74 - 3,051
Obviously use this data at your own risk. Work up in your rifle
69 gr - 2,822
69.5 - 2,855
70 - 2,871
70.5 - 2,878
71 - 2,919
71.5 - 2,934
72 - 2,960
72.5 - 2,962
73 - 2,981
73.5 - 3,021
74 - 3,051
Obviously use this data at your own risk. Work up in your rifle
volunteer06
Well-Known Member
Thanks for the post I'm interested to see how the reports go with this bullet on game
Hope to get this load nailed down over the next two weeks then try to send one through a black bear. We shall see
volunteer06
Well-Known Member
Good luck!
pointy sticks
Well-Known Member
Nice. I have a barrel arriving on Friday and will be doing the same. I also was thinking of starting with 4831sc. What's the details on your gun?
PingGong3
Well-Known Member
This is a load I developed for a friend.
Rifle: Bergera Wilderness
.300wm
1:10 twist
24" barrel
ADG Brass
205gr Elite Hunter
Chamber Data from Once Fired Brass:
Shoulder Measurement 2.220
Neck width: .341
Brass Data from Never Fired ADG Brass
Overall Length: 2.612 (+/- .002)
Shoulder Measurement: 2.206 (+/- .001)
Shoulder Bump Never Fired Brass: .014
Target Shoulder Bump: 2.180 (.002 bump)
Lands: 2.856
Bullet ogive length: 2.853
Off Lands: .003
Neck Tension: .333 bushing
72.4gr H4831
It's a Seekins Havak PH2. So 26" barrel and 1:10" twist. Those 9 rounds were the first I've fired through it so we'll see what the load does over time. If the barrel speeds up, awesome, I'll drop charge weight
Luckily I have probably 6 pounds left in the jug. I bought the H4831 mainly because 26 is so hard to find I can't hardly bring myself to use it any more. I've even thought about trading it for something else and letting someone else benefit from the speed. I don't really chase the speed too much any more. 2,900 with a good bullet keeps me lethal to and beyond my personal limits so I don't need to step on it
PingGong3
Well-Known Member
I'm pushing a Berger 215 out of my .300wm at 2908fps with 73gr if H4831SC. It's plenty for what I need.
I'm awful tempted to work up a load with the 225 ELDM. Only because of the .777 G1 bc. Could dub the load the hand of God
xsn10s
Well-Known Member
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- Mar 7, 2016
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With the velocities you were getting with H4831 I'd just pick an accurate load lol. Seems to work out pretty good for you.
That's the plan. I'm hoping to get out this weekend and get some more data. I'm exploring with 71.8, 72 and 72.2 grains for accuracy. Hopefully it shoots well then I can stretch it out and hopefully it holds together and I can come across a bear this spring
