PDA

View Full Version : Solid brass bullets?


captbilly
02-22-2011, 1:13 PM
For those of you that don't like my physics of shooting related posts, stop reading now!

I see that there are a number of manufacturers making solid brass bullets, often specifically for target/long range shooting. I can see how the uniformity and precision of such a bullet could be fantastic when compared to a jacketed lead core bullet but how about the density? Brass is considerably less dense than lead so a solid brass bullet is going to be significantly less dense than a lead core bullet, so wouldn't the brass bullets have worse ballistics? I could see why one might want a tungsten core bullet (Barnes MRX) with a density of 19.3 vs. 11.3 for lead, but why a bullet made from something less dense than lead? Density of brass is less than 9.

shadowofnight
02-22-2011, 1:18 PM
Less dense means more material, for the same bore size that means a longer bullet of similar weight with the possibility of a better BC.

These are nice http://lehighbullets.com/proddetail.asp?prod=338%2D100

Dreaded Claymore
02-22-2011, 1:31 PM
I could see why one might want a tungsten core bullet (Barnes MRX) with a density of 19.3 vs. 11.3 for lead, but why a bullet made from something less dense than lead? Density of brass is less than 9.

Units please! 19.3 what?

*looks it up* g/cm^3, oh okay.

Nathan Krynn
02-22-2011, 1:42 PM
I can tell you I use the 95gr TTSX in my 6.8 and it freaking kills everything I shoot right under 3k FPS.

captbilly
02-22-2011, 3:38 PM
Less dense means more material, for the same bore size that means a longer bullet of similar weight with the possibility of a better BC.

These are nice http://lehighbullets.com/proddetail.asp?prod=338%2D100

If low density were an advantage in bullets then there are certainly much much better choices than brass. And in addition to metals with much lower density than brass (aluminum, with a copper jacket, or just plain aluminum) one could certainly make a hollow bullet, or plastic cored bullet.

Fjold
02-22-2011, 4:10 PM
Most of the Barnes, etc. lead free bullets are actually copper alloys. The brass bullets are usually used for solids (non-expanding bullets) that are used for straight line penetration at short distances where sectional density is more important than ballistic coefficient.

Fourth from the left you see a 300 grain Barnes TSX which is a monlithic copper alloy bullet designed to expand for maximum shock and the fifth bullet from the left is a 300 grains Barnes monolithic brass solid that is designed for maximum straight line penetration in flesh and bone. The flat point hurts the ballistic coefficient but aids in penetration.

http://img.photobucket.com/albums/v214/Fjold/Guns/DSC01073.jpg