|
|
Joined: Nov 2003
Posts: 28,847
Campfire Ranger
|
OP
Campfire Ranger
Joined: Nov 2003
Posts: 28,847 |
Anyone have suggestions on powder and starting loads for 120, 130, 140 and 155 grain bullets in a .338 RUM necked down to 7mm?
"Only Christ is the fullness of God's revelation."
Everyday Hunter
|
|
|
|
|
Joined: Jul 2008
Posts: 8,517
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Jul 2008
Posts: 8,517 |
I wouldn't waste my time with lightweight bullets.
It's got horsepower, launch heavies.
|
|
|
|
|
Joined: Nov 2003
Posts: 28,847
Campfire Ranger
|
|
OP
Campfire Ranger
Joined: Nov 2003
Posts: 28,847 |
Thanks. I hope you have a great hunting season.
The 155 is the heavy.
"Only Christ is the fullness of God's revelation."
Everyday Hunter
|
|
|
|
|
Joined: Mar 2010
Posts: 5,511
Campfire Tracker
|
|
Campfire Tracker
Joined: Mar 2010
Posts: 5,511 |
R25, 26, 33, 50
H-1000
50BMG
Retumbo
AA8700
You're going to be way under top efficiency at 155 grains. If your 155 grain limit stands, stay on the "faster" side of the slow burning powders. I don't go any lighter than 140 and IMR-7828 in a 7-STW.
Wollen nicht krank dein feind. Planen es.
|
|
|
|
|
Joined: Nov 2003
Posts: 28,847
Campfire Ranger
|
|
OP
Campfire Ranger
Joined: Nov 2003
Posts: 28,847 |
Yoder409,
Thanks. Now maybe someone will have some numbers.
"Only Christ is the fullness of God's revelation."
Everyday Hunter
|
|
|
|
|
Joined: Mar 2010
Posts: 5,511
Campfire Tracker
|
|
Campfire Tracker
Joined: Mar 2010
Posts: 5,511 |
I'd probably start with a middle-of-the-road charge for a 7-RUM with the same bullet as my starting load. You're dealing with right around 5 grains more case capacity than a standard 7-RUM.
Wollen nicht krank dein feind. Planen es.
|
|
|
|
|
Joined: Jul 2004
Posts: 5,024
Campfire Tracker
|
|
Campfire Tracker
Joined: Jul 2004
Posts: 5,024 |
fella did one several years ago, calls it the 7mm Hurricane
"The welfare of humanity is always the alibi of tyrants".
|
|
|
|
|
Joined: Jul 2004
Posts: 5,024
Campfire Tracker
|
|
Campfire Tracker
Joined: Jul 2004
Posts: 5,024 |
Yoder409,
Thanks. Now maybe someone will have some numbers. just use 28 Nosler max load data as a starting point
"The welfare of humanity is always the alibi of tyrants".
|
|
|
|
|
Joined: Nov 2003
Posts: 28,847
Campfire Ranger
|
|
OP
Campfire Ranger
Joined: Nov 2003
Posts: 28,847 |
just use 28 Nosler max load data as a starting point You're the man! Thanks.
"Only Christ is the fullness of God's revelation."
Everyday Hunter
|
|
|
|
|
378 members (160user, 1lesfox, 1Longbow, 163bc, 01Foreman400, 12344mag, 29 invisible),
2,750
guests, and
981
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums81
Topics1,191,283
Posts18,467,788
Members73,928
| |
Most Online11,491
Jul 7th, 2023
|
|
|
|
