[Archie]

I have a pile of the "new" Winchester brass with larger flash holes. Does anyone have any information or inklings of problems with reloading these things?
I know that cases with flash holes drilled out for wax or rubber bullet use should not be used for regular pressure loads. Is there a similar problem with this larger flash hole brass?

I can't find any information on the web to shed any light.

If no one has any info, I'll segregate it out by size, try about 10 light loaded rounds to start and write if I get work.

[Vic303]

I've been wanting to buy some new Win 45 brass just to get a new supply with the big flash holes. I think they give a better burn than the smaller ones.

[Jim Watson]

Winchester says it makes no difference in routine reloading.
I just drop them in my mixed brass box and load them with the rest. I would, of course, sort them out if I shot 50 yard slowfire, but there is no significant difference for IDPA or IPSC.

[A. Partisan]

I use WinClean Brass. I can't tell the difference(if there is any) between it and brass with a smaller flash hole.

[Archie]

Hey y'all, watch this!

(As he backed a primer all the way into the firing pin hole......)