Which of the following is correct? The unit used breech-loading cannon

The unit used breach-loading cannon

Which of the following is correct? He promoted the breach-loading shotgun

He promoted the breech-loading shotgun

Which of the following is correct? Rifles became breech-loaders

Rifles became breach-loaders

Which of the following is correct? The army used breach-loading carbines

The army used breech-loading carbines

Which of the following is correct? The sea made a breach in the wall

The sea made a breech in the wall

Which of the following is correct? If I'm ill, will you step into the breach?

If I'm ill, will you step into the breech?

Which of the following is correct? His breaches were made of leather

His breeches were made of leather

Which of the following is correct? There were some bad breeches of etiquette

There were some bad breaches of etiquette

Which of the following is correct? She's breeching new ground

She's breaching new ground

Which of the following is correct? Explosives are used to breech beaver dams

Explosives are used to breach beaver dams