Glad to hear that the Brennekes are clocking better than advertised although I had originally thought they were trying to keep the pressure down. To see if the undertaking is even worth it I wouldn't see a problem shooting the standard fosters which are a bit more available. They are truly made to draw down under most circumstances and in my experience shoot fairly well.

If I remember correctly, the case length on fired Remingtons was 2 5/8 for their 16ga slugs. My guess is that they still take the short chamber situation into account.

Lastly, some time back there was a post on Shotgunworld or a closely related site, where a poster had cobbled together about a dozen different reloads for 16ga OO buck. He had shipped them off to Tom Armburst for testing and had the pressures listed as well.

Tom