New Start - .338 LM - 250 Grain

[Tennessee Devildog]

Hey guys, can I get some of you to give up some of that super secret load data. I am start work on a new load for my .338 Lapua Magnum using a 250 gr Berger Bullets. I have heard some really great things about them. I need something else to work on. Did I really say that?

I have focused primarily on the the 300 grain SMK and I have that one nailed down.

 

[markwondi]

What powders do you have available? My first choice for the 250gr Bergers is VV N570, followed by Retumbo.

 

[Tennessee Devildog]

What powders do you have available? My first choice for the 250gr Bergers is VV N570, followed by Retumbo.

Yeah I'm all out of vv. I've got reloader 25, imr4350, redumbo, 50 BMG, us869 and 8700.

 

[mr.big]

I liked h1000 for 250s and retumbo fir 300s but that was before rl33 came out and I never tried that
And inside of 1200 yards I really liked the 250s better than the 300s

 

[Tennessee Devildog]

What powder weight do you use for the H 1000?

 

[mr.big]

What powder weight do you use for the H 1000?

I can't really remember the charge weight but it was at 2900 fps from a TRG 42.
I lost all my notes in a fire and have since sold my 338

 

[Tennessee Devildog]

Well that's something. I have to do some reverse engineering for that one.

 

[jlanecr500]

Go ahead and research a load but just for giggles, I'd like to run it in quickload just to see how close my calculation is to what your best accuracy load ends up being at a given seating depth. I need barrel length, COAL at your desired seating depth, and projectile part number or description. Also, If you have a piece of fire formed brass, weight it with a primer in and weigh it again full of water. The difference is the water fill weight value that will make my calculations more accurate.

 

[mr.big]

Well that's something. I have to do some reverse engineering for that one.

I looked back at some pics as I usually write the load on the target but I didn't find any load data.

On the Sako at Rock Castle Ky , a groundhog I killed on Groundhog Day and a 750

yard headshot target

 

[MUP]

Tennessee Devildog, if you're wanting some H1000 I've got 5 lbs for sale in the classifieds now. I'm close to Dead Zero as well.

 

[parch]

I have a couple pounds of RL33 if anybody needs any for sale. I sold my 338 lapua 6153082712

 

[TiminTN]

This has been the only 338 Lapua I have chambered, it was for a longtime friend. He chose 225 Accubonds and RL19, straight out of the Nosler load manual.

 

[Tennessee Devildog]

Tennessee Devildog, if you're wanting some H1000 I've got 5 lbs for sale in the classifieds now. I'm close to Dead Zero as well.

No, thanks! I have found a good load with RE25. I going to work with that some first. If it does not work out I may get back to you.

 

[OldFart]

I use 250g Nosler Partitions and H4831 for my 338 WIN Mag. This combo has let the air out of 6-8 elk and is accurate.

 

[Tennessee Devildog]

Well, this 250 gr Berger is still eluding me, but I have some really good stuff for the 300 gr SMK.

RE-25, 87.5gr, GM215M. 2727 FPS.

 

[MUP]

Heck yeah!

 

[nso123]

Well, this 250 gr Berger is still eluding me, but I have some really good stuff for the 300 gr SMK.

RE-25, 87.5gr, GM215M. 2727 FPS.

The 300 SMK has been the best performer in my .338 LM. A healthy dose of Retumbo has it over 2900 fps. This is in a Krieger barrel that has turned out to be a pretty fast barrel.