~ 50 yr old match brass score!

[kelbro]

I was scrounging around one of my 'brass' file cabinets and found a decent sized batch of once-fired LC Match 308 brass. It's dated 1977 and I bought it many many years ago. From what I remember, this was rounded up at Perry. I just pulled a sample and found that the weights were very consistent but about 6 grains heavier than current production Lapua. I have not compared H2O capacities yet. I'm planning to anneal, size, trim and chamfer this brass and see how it performs.

It would be great if the extra 6 grains are in the case head and provide a little more primer pocket life. I might cross-section a piece to compare to current production Lapua to see. I'll need to shoot a couple of pieces to find the H2O capacity.

 

[mgunderson]

Expect to see a volume difference. They are known to have thicker walls and less volume. Had a few chunks of the knurled lc match that was exceptional from the mid 90s. No idea about stuff from that vintage. Expect to drop the powder charge.

 

[JLittle]

I’ve been running some LC ‘67 Match for short range practice brass in a Palma gun. Been thinking of retiring it just for posterity sakes.

 

[kevinbritvec]

Starting loads in published data is very close to, even over maximum when using that brass. A full 2.0 grain powder reduction is common vs. Winchester brand commercial cases.

 

[kelbro]

Starting loads in published data is very close to, even over maximum when using that brass. A full 2.0 grain powder reduction is common vs. Winchester brand commercial cases.

Thanks. I was expecting as much.

It will be a good test of GRT/QuickLoad. I have known loads/velocities with Lapua cases. Doing a comparison with the adjusted H20 capacities will be educational.

After some prep, the weight consistency is very good.

 

[Albany Mountain]

I use WCC58 regularly and will use this weekend. Its awesome and funtional for 68 yr old brass.