338 SHERMAN MAX

[tim_w]

Yeh 555 is a lower energy density than 550 or 560. Sounds like 550 is the ticket and rl17

 

[jsmitt6]

Any idea on what a 20" barrel will fling a 225 grain Accubond? I have H100v, H4350, H4831sc, Retumbo, H1000, Varget to work with.

 

[elkaholic]

Any idea on what a 20" barrel will fling a 225 grain Accubond? I have H100v, H4350, H4831sc, Retumbo, H1000, Varget to work with.

Probably 2850-2900 with powders like N550 and maybe as slow as H100V or RL17, etc

 

[jsmitt6]

Probably 2850-2900 with powders like N550 and maybe as slow as H100V or RL17, etc

Thanks Rich. I was getting 2840 out of my 338ss with a 26" tube. So dropping 6" and being in the same zip code for speed is attractive.

 

[In_Him]

Would love to see some more results out of the shorter barrels. Folks willing to share?

 

[jsmitt6]

Would love to see some more results out of the shorter barrels. Folks willing to share?

Have you read the other thread? I'm working up load data on a 21" barrel and posted a few numbers yesterday

 

[Idaho Trecker]

Have you read the other thread? I'm working up load data on a 21" barrel and posted a few numbers yesterday

If you are referring to the 338 mega thread you posted on the max and mega are not the same cartridge.

 

[jsmitt6]

If you are referring to the 338 mega thread you posted on the max and mega are not the same cartridge.

You are absolutely correct. In my grogginess this morning, I overlooked where this thread is for the 338 Max instead of the 338 Mega.

 

[In_Him]

Have you read the other thread? I'm working up load data on a 21" barrel and posted a few numbers yesterday

Yes sir, I've been watching you papasmurf and others on the Mega thread. I'm just looking to build a Max and wanted to see what folks were getting out of these. Thanks for sharing what your findings are though, it's very helpful!

 

[elkaholic]

Yes sir, I've been watching you papasmurf and others on the Mega thread. I'm just looking to build a Max and wanted to see what folks were getting out of these. Thanks for sharing what your findings are though, it's very helpful!

the max is around 100 ft less

 

[jmden]

With the 338 Sherman Max, 250g Berger Elite Hunter and VV N550, what kind of temperature vs. fps per degree F are you guys seeing? I'm thinking it's nearly a 1F to 1fps relationship. What are you guys seeing?

 

[jmden]

With the 338 Sherman Max, 250g Berger Elite Hunter and VV N550, what kind of temperature vs. fps per degree F are you guys seeing? I'm thinking it's nearly a 1F to 1fps relationship. What are you guys seeing?

Took it out to 1358 yds today in temps about 15F below what I'd zeroed at and the using the 1fps to 1F in ABMobile put me spot on. Very still day so pretty confident. Anyone else playing with this?

 

[jmden]

Took it out to 1358 yds today in temps about 15F below what I'd zeroed at and the using the 1fps to 1F in ABMobile put me spot on. Very still day so pretty confident. Anyone else playing with this?

A spike bull back in designated wilderness fell to the 338 Sherman Max from 858 yds a couple of days ago. A bit of variable wind, but POI on the bedded bull was very close to POA right through the engine room...

 

[elkaholic]

A spike bull back in designated wilderness fell to the 338 Sherman Max from 858 yds a couple of days ago. A bit of variable wind, but POI on the bedded bull was very close to POA right through the engine room...

Nice work Jon!!