Thinking of this over 338LM.
Pics, range reports, ballistics reports, component lists all welcome.
Pics, range reports, ballistics reports, component lists all welcome.
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Looks like NM is about 10% faster (fps) than LM. Does that translate into a flatter shooter?
The thing that is throwing me is the shorter 338 Norma Mag case, which SHOULD mean you get less speed, more drop over distance, less terminal velocity, etc... ???
Have you looked into 300 Norma? Looks like this has the ballistic performance of the 338 LM with a 30 cal. I've heard it's called the poor man's Lapua.
There is a great article that you read about here that summarizes 300 Norma against 338 LM and 300 WM: www.accuracy1stdg.com/content/docs/Binder7.pdf
My 338 Norma Mag arrived today. Happy times. Stiller action, Krieger 26.5"bbl, Manners T5A MCS-DBM, AI mag. Like the OP, I'd be very happy to hear some load details, especially with H1000 or Retumbo. Brass price here's a killer though, $3.56 per case for Norma and currently on back-order.
$3.56 per case? Ouch. I wonder if we can ship you brass internationally. What are your laws?
Love my 338 NM.
Specs: Badger M2008 receiver, Benchmark 27" barrel, XLR Extreme Evolution HD chassis, LRA bipod, Dagley Brake, Spuhr mount holding a Razor HD.
She pushes the 285 hornady's with 92 grains of Retumbo at 2890 fps.
The only thing that sucks about this cartridge is when you tell people you have a Norma...doesn't sound as cool as Lapua which is a very important issues![]()
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I agree the 300 NM would be a hell of a cartridge also, pushing the 230's. It would be a hair cheaper to shoot too. The difference in cost is only about $15/100 projectiles. Everything else is a moot point, still going to use the same brass, primers and a similar charge. One thing that you have to put into perspective is barrel life on the 300, when you're pushing similar powder charges as the 338 down a 30cal tube you'll have a bit more erosion. It would still be fun.![]()
I agree, if someone would AI this cartridge or at least do an Improved 30 shoulder on it, it would be even better.
xdeano
Can a rem 700 with the correct bolt face handle the Norma magnum? I would like to build one but was wondering about if a 700 action could handle the pressure?
Update:
300 gr Berger OTM's
89.0 gr H-1000
2.902 COL
I get 0.3 - 0.4 MoA repeatable.
Pics:
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Love it.
Have you ever ran Retumbo?
Retumbo under some 300 mk's is what I'm experimenting with first. Went from 85 up to 88. Had a very slight primer crater at 88 grains.I got 2 lbs ready to load up some. Xdeano loaded some up and had good results. IIRC loads were a little lighter than H-1000. I don't have the info here, but can get his load data at the house.
Retumbo under some 300 mk's is what I'm experimenting with first. Went from 85 up to 88. Had a very slight primer crater at 88 grains.
Best group I had so far was during barrel break in. w/ 85 grains it was .5" horizontal, but only .1" vertical. I'm going to do some load testing today yet. Yesterday I did ladder testing to figure some handload pressures.That sounds about right.... 86-87 gr as I recall.
What are your groups like?
No clue on my velocities. I'm going to chrono my loads today.Looks like at 400 you have a nice node with the 86 and 85.4. What velocities were you getting.
No clue on my velocities. I'm going to chrono my loads today.
I got 2 lbs ready to load up some. Xdeano loaded some up and had good results. IIRC loads were a little lighter than H-1000. I don't have the info here, but can get his load data at the house.