7 Sherman Short Neck Bushing

[BoomFlop]

Curious as to what Hornady neck bushings you all are using? Also, are you running the neck bushing and then following with a mandrel or just using the neck bushing to set neck tension?

Need to purchase bushings and want to see which ones I should be getting. In the past I've just used standard Redding dies with a .282 mandrel.

Thanks,
Steve

 

[Bbturbo]

Rich told me that 291 or 292 for just bushing. 290 and a 282 mandrel would work great

 

[Justice1327]

On ADG brass, I use a .288 bushing and then a .280 mandrel.

 

[Bbturbo]

On ADG brass, I use a .288 bushing and then a .280 mandrel.

My gunsmith is telling me to use a .310

I know lots of saum guys are using .313 .314

I've got a 2 thousandths K&m mandrel on the way (I believe that means .282)

 

[Phil Rizzo]

Some people are giving you 6.5 bushing sizes, accidentally.
When I get to my load data I'll forward the bushing size for 7ss brass specifically. Should be very close.
Have you measured neck thickness for your specific lot of brass?

 

[BoomFlop]

Guys, I have this figured out and have taken multiple animals with this rifle in the past 2 YEARS. LOL

Thanks though.

 

[Phil Rizzo]

Love my Shermans!

 

[Bbturbo]

Guys, I have this figured out and have taken multiple animals with this rifle in the past 2 YEARS. LOL

Thanks though.

What size bushing did you end up going with? I'm have a 7 ss built right now and plan on running a K&m .002 expander mandrel and the 180 eldms

 

[BoomFlop]

I ended up with a .308 bushing and a 282 mandrel.

 

[Justice1327]

My gunsmith is telling me to use a .310

I know lots of saum guys are using .313 .314

I've got a 2 thousandths K&m mandrel on the way (I believe that means .282)

Good catch, that bushing is for my 6.5 SS.
I checked and I am using a .307

My rationale is this. Squeeze it a little smaller and then use a mandrel to set neck interference.

 

[Phil Rizzo]

Squeeze it 3-4-5 thou smaller than what a loaded round neck OD measures.
Then open it back up with whatever mandrel gives you desired neck tension.
Make a dummy with the bullet you intend to run.
The OD on them varies too, from manufacturer to manufacturer and lot to lot.
A .0005 variance can sometimes cause issues…depending on your requirements