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Found 6 results

  1. I still see a lot of people wondering why they fail to meet PF at a match. If you just add a few extra power factor points, now you know what can happen. The bottom line is that velocity is random in nature and the BEST way to understand and manage it is to use statistics. You don’t need to have any special math skills. This post provides the simple steps to follow. For the why and more details, see Frontsight Magazine, Jan/Feb 2015 Edition, Pg. 70. The standard deviation (STD) measures the amount of variation (uncertainty) around the average velocity and it should always be used when r
  2. In preparation for several major matches in the area, a club performed a chronograph check at a local match last weekend. About 6% of the competitors failed to meet their declared PF. This included several experienced competitors. So remember this! The average velocity (and hence PF) you measure at the range will always be better than the official USPSA chronograph results. Yes, it is true! The two measurements are like comparing apples and oranges. It has nothing to do with the small differences between chronographs and of course all the laws of physics apply equally in both cases. So
  3. Charge weights are noted to the hundreths because I drop ten charges on the scale and take an average. Barrel: 5" M&P 9L / Apex SDI fitted barrel Temperature: 45 degrees F Bullet: 130 gr BBI Powder: 4.0 gr Solo1000 OAL: 1.110" Primer: Wolf 968,946,948,971,944,961,948,967,992,945 Average = 959 fps PF = 124.6 ES = 48 fps SD = 15.68 Barrel: 5" M&P 9L / Apex SDI fitted barrel Temperature: 45 degrees F Bullet: 130 gr BBI Powder: 4.23 gr Solo1000 OAL: 1.110" Primer: Wolf 994,1004,1029,983,996,976,984,994,1013,1024 Average = 999.7 fps PF = 129.9 ES = 53 fps SD = 17.67 Barrel: 5" M
  4. Hello, I will start my new season of IPSC. I am a newbie on reloading. I shot in minor production. I would like some informations on reloading. My goal is to be a minimum factor not more. Because like this, there will be less recoil, best gun control, faster return to target, so less time which is important for ipsc. (my wife shoot with me, and less recoil is better for her too) Im scared to load my cartridges for 125 PF. 1) because if there is a difference between my chrono record and the one on the competition, I may not pass and not being classed. 2) I was told that according to weather
  5. Developing a .45 ACP Major PF load using Berry's 230gr TMJ-RN bullets. Trying to keep the PF right at 168 out of a 5" barrel. Currently use Titegroup for 9mm and .40, but was wondering if others found a softer shooting/less smoky powder for .45.
  6. I am trying to develop some reduced recoil loads for 3 gun. Unfortunately it’s still hard to come buy some of the more popular pistol powders so my selection is limited. I have on hand Silhouette, Accurate No. 5, Power Pistol, and CFE Pistol. I would love to find some NV320 or 231. I am using 180 JHP Montana gold bullets. Looking through several different loading manuals all of the minimum loads are still close to major PF velocities. I see several threads on here where people are loading up to 1 grain under the minimum recommended level. Is this safe? Can i start a minimum and back it of .1 t
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