338 SHERMAN

[Reelamin]

270 win brassView attachment 320062

Thanks, any idea on what the new case capacity is? What kind of velocities are you getting?

 

[slingshot_68]

Thanks, any idea on what the new case capacity is? What kind of velocities are you getting?

I only fireformed cases, my scope bit the dust and didn't move forward with the project. Just picked another up so sometime in the next few months I will be working up loads.

The leupold scope I bought was only 2 feet high at 100, it tracks backwards vertically and will go no lower

 

[elkaholic]

Thanks, any idea on what the new case capacity is? What kind of velocities are you getting?

Case capacity varies quite a bit by brand but I would say 76-78 avg
Mine would run a 250 Berger at 2800 with a 24"barrel

 

[Shane Lindsey]

.362 loaded. I used a .360 bushing

Rich,
Would this be be the bushing for fireforming with the Hornady dies or would they be different? Using Peterson brass. Not sure the neck thickness difference from Norma.

Thanks,
Shane

 

[elkaholic]

Rich,
Would this be be the bushing for fireforming with the Hornady dies or would they be different? Using Peterson brass. Not sure the neck thickness difference from Norma.

Thanks,
Shane

sounds good

 

[Shane Lindsey]

Hornady is only showing .362 as the smallest. Is this going to be enough to size the neck? Based on above I assume those were different brand dies?

 

[elkaholic]

Hornady is only showing .362 as the smallest. Is this going to be enough to size the neck? Based on above I assume those were different brand dies?

View attachment 320462

likely not depending on which brass. Get rcbs or redding, etc

 

[Peter K]

Anyone looking for some cheap bullets to fireform with, here you go. https://www.midwayusa.com/product/1023840599?pid=207758

 

[slingshot_68]

Anyone looking for some cheap bullets to fireform with, here you go. https://www.midwayusa.com/product/1023840599?pid=207758

Thank you

 

[Shane Lindsey]

Rifle…Good
Brass…Good
Dies…Good
Fireformed…48 (2 were sacrificed to the Sherman oracle) 50 more to go and then can start to look at what to load for it. Used some 225gr Midway overuns (look like Swift Aframes???) and some Shooters World Precision because I have quite a bit and my 308 doesn't like it much. Used the Lee powder thrower for this at 50 gr and man it is nice to throw charges instead of weighing them.
Leaning to the 175 Hammer Hunter for one and definitely the 250 Berger…cause it's a 338!!!
A little heavier than I would have wanted but manages recoil well.
No target pics as it was only about 40 yards. Recent storm crushed my normal spot and trees all over the trail. I think it's gonna be a shooter though.

P.S. after firing 50 yesterday to break in and fire form, old Savage bolts suck!!!

 

[Shane Lindsey]

Question for those who have gone through this with the 338 Sherman or other cases for that matter.

After fireforming, I have found my cases are only 2.465"-2.477". None are close to the 2.495" chamber length.

Is this normal? I know most cases continue to grow, but this seems like a lot.

Did I not use a stiff enough charge during fireforming. It was right in the middle of the charge weight for that bullet weight on a 338-06.

 

[Pdvdh]

Mostly to be expected. Shrinkage in case length is normal, and how much depends on a variety of factors, including some VooDoo.

 

[Monkeygoat]

@elkaholic, any thoughts about shortening a 300 Norma or other .588 case for a mid-length?

 

[Shane Lindsey]

Thanks!
All this sh$@ it voodoo man!!! Just don't want the boogey to get me of I do it wrong.