![]() ![]() Cold, clear, winter days tend to be higher pressure and therefore higher density than warm summer days in the same location. Mt Everest you will find the speed of sound to be higher on the beach. However, the same temp day at sea level vs. For an ideal gas such as air, the temperature has a lot to do with the density. It is far more the density of the medium that dictates the speed of sound over the temperature. CO is substantially drier and higher in elevation than all of Ohio where it's a muggy, dense miserable biche in August.Īgain, I love the math, but practical experience just isn't allowing me to get my head around this.Ĭhad's right. In this case the only thing different is the air density. I've shot subsonic loads indoors at the OTC in COS, CO that occasionally snapped that under virtually identical conditions (temperature wise) don't crack when at Camp Perry. Everest on a toasty -20*f afternoon and hear a supersonic crack that same report is going the same speed as a -20*F day here in S. (as described in the context of the link you provided) I realize this is an extreme example, but I'm still not buying that if I chronograph a bullet on top of Mt. Looking from that perspective if I'm on the moon and it's 400*f outside is sound really going to travel at the same velocity as it does at the bottom of the ocean next to a volcanic vent spewing out 400*F seawater? Never been there but I'm told its a pretty quiet place. As we increase in altitude the air becomes progressively thinner until we enter the vacuum of space. That being said since as long as I can remember it's well understood that sound travels through water at a higher velocity than it does our atmosphere. In order for the sound generated from your vocal chords to rattle against my ear drums some medium has to be present right?īe it normal earth atmosphere, water, or even baby oil if we want to get kinky. I've read through this and although math is something I firmly believe in, I'm not quite understanding this. Here is a good explanation of the physics details: Not to be too technical, but the speed of sound is primarily dependent on air temperature (which directly affects air density). Its directly related to the air density at a given elevation. Understand the speed of sound is not constant. Originally Posted By: johnsopaOriginally Posted By: C. Be sure to check out their website for more offerings.Re: How to slow a bullet down in a bolt gun? Next up is to test this ammo out of a 14.5 and 16″ barrel. I do NOT expect the bullets to expand and would only take precise right behind the ear shots to hit the CNS. Unfortunately, I haven’t had the chance to test terminal performance on a pig with the ammo yet. Running a 50 yard zero I could easily bang the 8″ plate in low center by holding to the top of the plate. Grouping was around 1″ at 50 yards with an Aimpoint T1 and around 2″ at 100″ yards. I chronoed both loads and they stayed subsonic with two different suppressors on them and cycled fine in this rig. ![]() I ended up getting some of the 208g AMAX and 220g Sierra and have fired them in this build. You can tell a lot from someone by their actions. He also has bent over backwards helping people out with load data and general advice. His advice on handloading has always been spot on and in line with my findings on several cartridges. While I had not personally used any of his ammo I have been paying attention to what he posts and how he interacts with people on the Texashuntingforum. I was familiar with the work done by Chad at DallasReloads and gave him a ring. I ran a 11″ Wilson Combat 1/8 twist barrel and needed some good ammo to test the platform with. I did a recent project building up a 300 Blackout pistol. ![]()
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