The Firing Line Forums - View Single Post

chiefr · March 30, 2013, 08:12 PM

I too think the question is valid.

I for one have never worried about compressed loads. The manuals are full of compressed loads and compressed loads are common with overbore & magnum cartridges using slow buring powder.

One thing to consider is the brand of brass you are using. There can be considerable variance between some brands and even some lots of the same brand. Some brands will hold more powder than others.

IE in 7mm Mag using H870v I have a pet load that requires compression with R-P brass and no compression with WW brass.

For those who use black powder and reload black powder cartridges, compression is a way of life. Compression makes all the difference in the world when you are trying to maximize performance.

March 30, 2013, 08:12 PM	#6
chiefr Senior Member Join Date: January 27, 2010 Location: AR Posts: 1,401	I too think the question is valid. I for one have never worried about compressed loads. The manuals are full of compressed loads and compressed loads are common with overbore & magnum cartridges using slow buring powder. One thing to consider is the brand of brass you are using. There can be considerable variance between some brands and even some lots of the same brand. Some brands will hold more powder than others. IE in 7mm Mag using H870v I have a pet load that requires compression with R-P brass and no compression with WW brass. For those who use black powder and reload black powder cartridges, compression is a way of life. Compression makes all the difference in the world when you are trying to maximize performance.