Mag., 150-grain bullet, 3,248 fps: 29.16 f-p recoil energy, 16.37 fps recoil velocity. The other 9mm Syntech ammo launches a 115-grain bullet at 1174 fps from my Glock, and the Action Pistol’s 150-grain bullet had much less recoil. Unfortunately, there are no particular rules of thumb as to what will hit higher or lower. Features such as the no-clog hollow point bullet and a design and powder load specifically for use in a full size handgun contributed to the decision as well as consistent performance in testing. The test gun was a Para Ordnance P14-45 and was fired while held in a Ransom Rest (Figure 2). Now, if you stuffed a 180 grain bullet into the .308 and a 130 grain into the 7mm-08, a shooter would detect a reasonable difference. But there are three reasons why you might want to try a different weight bullet in the caliber you’re shooting. There is a 6% difference in recoil force. Many organized shooting sports require ammunition to achieve a minimum power level to qualify and be scored in a specific division. My experience has been with 175 gr 45 swcs and 155gr .40 swcs. Using heavier bullets solves the problem, but I have also found that there is a limit to the advantage of a heavier bullet. Many shooters claim that the recoil of light and heavy bullets feels different when loaded to the same power factor. So what are you waiting for? Two different rounds could have different bullet weights and different velocities, but equal the same power factor. Many shooters say that the light, fast bullet seems “snappier” while the heavy bullet’s recoil is more of a flat push. As you shoot those groups to see how high or low they impact compared to your preferred sight picture, you may notice that all else being equal, ammunition with different bullet weights might feel different in your hands. If you are not familiar with the composition of a cartridge, here’s a quick explanation of these four parts: Primer: The part of a cartridge that is struck by the firing pin, creating a small explosion that ignites the powder, Powder: Fast-burning propellant that is ignited by the primer explosion; the gases released create a pressure in the case that pushes the bullet out, Case: Brass, aluminum, or steel container that houses the primer and powder while the bullet is seated in the open end; sometimes referred to as shells or brass, Bullet: The projectile that leaves the barrel of the gun and moves toward your target. I tested bullets of the same nose shape loaded to the same COL so that the internal volume is proportionately affected by the difference in the length of the bullet itself. Save Share. For whatever reason, I’ve only shot 180 grain in this caliber. Gentlemen and fellow addicts . I have shot the 125 grain Sierra Pro Hunter in the M14 in NRA High Power Rifle competition in the 200 yard standing slow fire and sitting rapid fire stages. Winner: .223 Rem. This can differ from gun to gun and experimenting with different rounds is the best way to figure out what works best for you. In comparison, for the .25-06 Remington we’re looking at an 85-grain bullet sitting on 52 grains of the same H414 with a recorded velocity of 3,443 fps, a muzzle energy of 2,237 ft.lbs., a recoil impulse of 2.45 lbs.sec. Hello, I just bought a rifle chambered in .375 HH and have this question regarding recoil. If you load one totally different than the other then all bets are off. When you see “grain” (sometimes abbreviated as “gr.” or “grs.”) preceded by a number on a box of ammo, it is referencing the weight of the bullet. Does it make a difference if you're carrying 9mm 147-grain or 115-grain? This is known as power factor. Lighter bullets need more velocity to reach the 165 power factor, and that requires more gunpowder (Table 3). One possible confound to comparing bullets of different weights is that they might differ in their construction (lead hardness, jacket hardness and thickness) which could affect their friction coefficient, which could affect their velocity which would affect the calculations. You also might see that ammo with different bullet weights won’t always look alike. Range Training- There are many shooters who have never paid any attention to bullet weight. The Ransom Rest results (Figure 3) show that the 200-grain bullet had 5.9-percent less movement, and the 230-grain bullet had 9.1-percent less movement compared to the 185-grain bullet. This comparison has been run several times with different calibers, bullet brands and gunpowder (.40 S&W with mixed brand 165-, 180- and 200-grain jacketed bullets; .38 Super with mixed brand 115-, 130-, 147- and 180-grain jacketed bullets), and the result is the same; heavy bullets produce less recoil and require less gunpowder than light bullets for the same power factor. Thread Status: Not open for further replies. Sometimes you find a cartridge that really shines when it's handloaded, and it reinforces the notion that reloaders can improve the performance of their chosen cartridge and firearm. Bullet grain plays a significant role in the performance of a bullet. If those are still too much, there are also some very easy shooting 32 H&R loads you might want to look at. Where lead-free bullets must be used, the 35-grain Ballistic Silvertip LF in 22-250 Rem. Recoil– The big debate is whether bullet weight affects recoil. With 125 grain, I don't feel hardly any recoil … You may find a lighter bullet has performed consistently better than a heavy bullet in a ballistic testing (or vice versa); because of all the factors involved, relying solely on bullet weight is unrealistic. … So basically the 38 load with the lowest amount of energy (in Ft. A common distinction is between "Minor" and "Major" power factor, and it determines the score value of peripheral hits. The grain of a bullet is simply its weight. Also, like you, prefer the Speer Gold Dot 100 grain SD loads to the AE. My goal is to get back on target as fast as possible while shooting timed qualifiers. Power factor is a measurement of the momentum of the bullet and is used primarily in competition settings to determine perceived recoil. We’ll get to the latter in a minute, but first let’s get an understanding of what grain actually is. Better penetration than a 125gr with less recoil than a "standard" 158gr .357 load. Do these different bullet weights achieve the same power factor when loaded with the same gunpowder charge weight? Your intended use is important and will help to determine what cartridge is best. A grain is a unit of measurement of mass. What works well in one gun may not be reliable in another, but by evaluating your needs and implementing a little bit of experimentation, you’ll be able to find the best fit for you and your gun. Big bore semiauto or a lever gun? Then the 9mm crowd seem to favor heavier 147 grain bullets over smaller 115 grain bullets regarding recoil. Here’s a brief look at some common uses and some considerations to make for each. Also, please understand that there are dozens of loads for any given bullet weight in any cartridge that will produce the same velocity, but a different amount of recoil. Feb 2, 2014 #1/10 After 5 or so years of using moly coated lead 230 RN bullets in my XD45, I've finally exhausted my supply of components and I'm looking to restock. The easier way, that doesn’t require taking a hammer to your gun or seeing a gunsmith to adjust your hardware, is to try changing the weight of the bullets you’re shooting. The two Berry's bullets have virtually identical nose shapes, so their difference in internal volume is ideal for this test when they are loaded to the same COL. But they all typically have about 200 to 240 ft lbs of energy --- which by Newtons Law means that the energy out the end of the barrel is offset in the recoil. For the average shooter, reading the description on a box of ammo can make it feel like you’re deciphering a secret message. I can't really get into ballistics, but I can tell you I notice a difference between 125 and 158 gr bullets. for my 38/357 Mag., etc.). this is not true if I shoot reduced recoil ammo however. Shooting 158 grain .357 mag rounds is a wild ride, for sure. They typically shoot whatever is cheapest and most available without any problems. For most plinking at the range, not a whole lot. I would go 300 win mag, because I plain like 30 cals. There are specialty rounds available specifically for the game you will be hunting, such as the Winchester Super-X .308 which is designed with a 180 grain soft point bullet specifically for deer and boar hunting. No. Your sights will lift less at the same power factor with a heavy bullet vs. a lighter bullet. A common misconception is that the grain information on the box is referencing the powder found in a cartridge. Some guns, pistol and rifle, just “like” certain bullet weights or even certain specific ammunition types, better than others. That;'s the beauty of the 327. This was confirmed by both methods of measuring recoil. Never-the-less, the table below should give a reasonably accurate comparison of the recoil of most popular rifle cartridges. Recoil ammo however, just “ like ” certain bullet w. eight, reloading and ammunition related, turn.... 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