velocity

  1. Big-bore-bob

    Xtp hollow point vs. Xtp flat point consistency differences in .357 magnum

    Hello all, Had a testing session this weekend with several loads for my .44 mag and .357 magnum smith's. For the .357 686+, 4 inch barrel, using 158gr xtp hp's and fp's over 15.5gr h110, cci 550, coal 1.575, starline brass, I recorded a large difference in SD and ES between the two bullet...
  2. JmacD

    Barrel Length vs Burn Rate.

    I have two rifles that I’m feeding. Both are 308 Winchester. Both are 1:10 twist rate. Both are bolt action. But one of them (mine) has a 26” barrel. The other (my brothers) is an 18” barrel. I’m wondering if more velocity could be gained by using a bit faster powder in the shorter barrel. I’m...
  3. Snidely70431

    Calculate Twist Rate, Bullet Length and Muzzel Velocity for optimum bullet stability

    https://www.tmtpages.com/twistrate.htm The above link will take you to an article with a calculator with which one can figure out the best bullet length for a given twist rate, groove diameter, and velocity. Actually, any of the variables can be calculated. This is merely a picture of the...
  4. DynoDan1

    Why should I buy a chronograph?

    According many folks on this website, YT videos, books, etc, I should invest in a chronograph. Why? How will it help me?
  5. K

    Effect of different bullets on ballistics/pressure

    Disclaimer: I am relatively new to reloading. I've been successfully reloading 38 special with Trail Boss and was looking to try out an HP-38 recipe. I have two different brands of bullets, XTreme and Acme, both 158gr SWC. I went to the Hodgdon reloading site and checked out load data for...
  6. TTv2

    Wondering how important is barrel length for 10mm?

    I will preface this by saying that I've had the Glock 40 on my list for too long and that before Double barrel Joe wins I have decided I need to get a 10mm now before it's too late. What's kept me from buying the Glock 40 is it's $700 and Glock 20's can be had for quite a bit less used. What's...
  7. K

    Do you limit your shots to where your bullet is traveling above 2000fps?

    I've read that in general a bullet damages like a rifle about 2000fps and faster. The construction of the bullet somewhat affects this (fragmenting helps) but that's the general threshold based on what I have read. Do any of you guys limit shots to where the velocity is 2000fps and above? In...
  8. C

    20” 22-250

    Anyone shooting a 20” barrel 22-250? I just picked up a Savage 110 with a 20” 1:12 barrel. Wondering what kind of velocities to expect. I keep reading that a 20” 22-250 is a waste over a .223. Anyone have some real firsthand experience? I will be handloading for it. If anyone has a good powder...
  9. The_Savage

    Slow Velocity with CFE 223 and 62 grain gold dots?

    Howdy all, Just got into reloading, and I finally chronoed my 223 load after finding a good accuracy for it. However, I'm getting 2400 fps average from a 16" AR-15 barrel using 62 grain speer gold dots and 25.5 grains of CFE223 powder. Is my powder scale messed up? Is the weather too cold? (30...
  10. B

    Reloaded 9mm Velocity Way Too High

    I'm fairly new to reloading and inherited a nice lot of gear and supplies, including a Dillon 550 press. I reloaded some 40 S&W without issue and decided to get setup on 9mm. After reloading maybe 50 rounds to take out and test I got some bizarre velocities. I'm using a Caldwell Chrono to...
  11. Zack Q

    Unique for 38 Special?

    I'm working on my first 38 special handloads and have some questions that I'm hoping someone can shed some light on. I've been reloading for about 5 years now and i finally got a chronograph last week to start recording velocities of my handloads and I noticed something unusual when metering...
  12. S

    How fast does your bullet come down?

    Take a bullet, any bullet, point straight up with your rifle/pistol/firearm, fire. If your muzzle velocity is 3000 fps, what will be the bullet's terminal velocity on the return to earth? I don't expect this is a trivial exercise in math / physics, but let's start with standard atmosphere...
  13. Load Master

    Velocity Difference in 9mm What is Best?

    Measuring muzzle velocity of my S&W Shield to my full size S&W CORE 9mm shows what is expected shooting the same ammo, the velocity is less with the shorter barrel of the Shield. No surprise here. If you are trying to optimize a round for a given gun (barrel length) would I expect better...
  14. Load Master

    Finding The Sweet Spot - .223Rem Loading

    In looking at .223Rem and Hornady 55gr FMJBT #2267 bullet, Hodgdon's website data shows Varget achieving 3,384ft/s with a charge of 27.5grs. Their "standard" load shows 3,174ft/sec with 25.5grs of Varget. I understand that the best grouping will most likely fall somewhere between these two...
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