Interesting .243 brass.

Rem700..300 · Mar 24, 2024

I have been going through all my brass, taking the primers out, wet tumbling and sorting. Most of it is from clean ups we do. Found this interesting piece of .243 brass. Have a normal .243 next to it on the right in the pictures.

Looks like someone reamed it out to a .308. Thought it was interesting for a Sunday evening.

Knobgoblin · Mar 24, 2024

Fire forming?

BillM · Mar 24, 2024

Based on what is shown, I'm going to GUESS it's .243 fired in a 30-06 chamber
and the 30-06 is a controlled feed rather than a push feed action.

RVTECH · Mar 24, 2024

BillM said:
I'm going to GUESS it's .243 fired in a 30-06 chamber

OR .243 that had been resized to .308 (whence it came) and reloaded as such.

BillM · Mar 24, 2024

RVTECH said:
OR .243 that had been resized to .308 (whence it came) and reloaded as such.

That was my first thought--but the diameter looks too big for .308. Looks closer
to full body size of the case. A side view pic of the two cases and a measurement
of the ID on the bigger one would help!

ETA--apparently .243 is the preferred case to make 35 Remington. Be interesting
to see if the big one has any kind of a shoulder.

aasbra · Mar 24, 2024

was thinking the same. Maybe a 243 case fire formed for 358 Winchester?

bcp · Mar 24, 2024

243 fired in 308 or 7-08 chamber.

A 308 or smaller 308-family fired in 30-06 makes a nearly straight case with a crimped-looking mouth. No neck at all.

Bruce

Rem700..300 · Mar 24, 2024

I will post a side shot tomorrow. It definetly looked like a .308.

2ndtimer · Mar 24, 2024

I used to neck up .243 Win brass to use in a 7mm-08 Rem. Currently I neck up .308 Win brass to use in my son's .338 Federal.

Rem700..300 · Mar 25, 2024

Side shot. Suspect .243 us on the left. .308 is on the right.

Mark W. · Mar 25, 2024

Wonder what round could be created using that blow out .308 if the little remains of the shoulder was trimmed off would the case have a straight enough wall to hold a slug?