338 Norma Reloading Data

[SheepShapeAK]

Mines a 338 nmi so take that in mind
I was at 96.5 grains gave me 2920 fps from a 24 inch 9.4 twist. I couldn't get the accuracy I needed so I went to a different bullet

Thanks!!

I might just need to slow them back down. The accuracy was good down low. As soon as I started pushing them faster they opened up. Still shooting sub MOA with H1000, but I'd like to see 1/2 MOA at minimum.

I went on VV's site and did some math for the 338 Lapua and I was definitely way under what you're running.

I guess we shall see this next weekend. If I can't get this dialed, I might just take the 375 out there for spring bear.

 

[RH300UM]

Thanks!!

I might just need to slow them back down. The accuracy was good down low. As soon as I started pushing them faster they opened up. Still shooting sub MOA with H1000, but I'd like to see 1/2 MOA at minimum.

I went on VV's site and did some math for the 338 Lapua and I was definitely way under what you're running.

I guess we shall see this next weekend. If I can't get this dialed, I might just take the 375 out there for spring bear.

I had the same problem.
As I the upped the powder the groups opened up

 

[SheepShapeAK]

I had the same problem.
As I the upped the powder the groups opened up

Have you tried and of the cutting edge bullets in your 338?

 

[RH300UM]

Have you tried and of the cutting edge bullets in your 338?

Yes
I have tried the 265 Mth max and had the same results as the SBD-2
Just did a pressure test with the 275 Mth max and N570. It has some promise
Pressure at 97 grains

 

[nralifer]

Mines a 338 nmi so take that in mind
I was at 96.5 grains gave me 2920 fps from a 24 inch 9.4 twist. I couldn't get the accuracy I needed so I went to a different bullet

Try using the recommended twist rate or tighter

 

[RH300UM]

Try using the recommended twist rate or tighter

250's -10 twist
275's - 9 twist
I asked you specifically on the twist rates. You said I would be ok

 

[KH_Outdoors]

For guys using barrels with faster than a 1-9.5 twist (give or take), where are you sourcing barrels?

Looking for something 9 twist or faster, heavy palma or similar to push 250 gr high bc mono's.

Options seem limited! Fair amount of 9.3, 9.5, 10, 11 twists available however.

 

[arcticman]

I am just finishing up a build now. I went with Preferred Barrel Blanks. 26" carbon fiber wrapped 1:9 twist. I want to use 250gr mono also but having trouble finding load data. I have talked to Hornady and Nosler and they have no information. I got some data from Berger but those are not mono. I have a request into Barnes for the 250gr LRX and haven't heard anything back from them yet.

 

[CodyMac746]

Try some data from 260 hammers for starters. I have some if interested

 

[arcticman]

Try some data from 260 hammers for starters. I have some if interested

Oh I'm definitely interested. Thank you

 

[KH_Outdoors]

Oh I'm definitely interested. Thank you

What powders do you plan to try?

 

[CodyMac746]

PM me arcticman

 

[Brianc74]

I have been trying the Hammer 260, and 265s with N560. 20 thou off the lands
Constantly 1.25" groups of 3 at 100 yards

 

[Reemty J]

Try the 210HHT Hammer it will be out " possibly " in the next few days, Fordy says it's the best 338 bullet he has seen! I can get 3462 fps out of it in my Dave Young 338 RUM, 26" Bartlein barrel. They group well also!