W231

oopie · #1 02-11-2012, 09:31 PM

Thanks for the suggestions..... I've been using 5.3 gr at an OAL of 1.260. I'm thinking I should back it down a notch......I really need to get a chronograph.

Dave Waits · #2 02-12-2012, 11:05 PM

My load has an ave.velocity of 835FPS at ten feet from the muzzle through my Prochrono.

oopie · #3 02-25-2012, 01:39 AM

Quote:

Originally Posted by Dave Waits

My load has an ave.velocity of 835FPS at ten feet from the muzzle through my Prochrono.

Thanks for the info....I ordered a ProChrono yesterday and will see if I get close to the same reading as you.

oopie · #4 03-05-2012, 09:31 PM

Quote:

Originally Posted by Dave Waits

My load has an ave.velocity of 835FPS at ten feet from the muzzle through my Prochrono.

I'm getting an average of 775 fps using 5.2 gr..OAL 1.268. I was hoping for more like what you were getting at 835 fps. Do you think by moving up to 5.3 gr would get me there?...I'm pretty new to this and not sure how much velocity would be gained by .1gr......

Dave Waits · #5 03-06-2012, 11:56 AM

Hmmm. reset your length to take it down another .003 and check diameter of your crimp at the mouth. I run .471. Lotta different factors involved here. Also. velocities run faster than Published in my barrel, it's a little fast. However, the books all show 5.3 grains running around 854fps or so. I'm running a tenth of a grain less and getting 835fps, you should be seeing more than 775fps.

How far away are you setting up the Chrono? Are you shooting through the upper third?

oopie · #6 03-06-2012, 04:04 PM

Quote:

Originally Posted by Dave Waits

Hmmm. reset your length to take it down another .003 and check diameter of your crimp at the mouth. I run .471. Lotta different factors involved here. Also. velocities run faster than Published in my barrel, it's a little fast. However, the books all show 5.3 grains running around 854fps or so. I'm running a tenth of a grain less and getting 835fps, you should be seeing more than 775fps.

How far away are you setting up the Chrono? Are you shooting through the upper third?

I will try seating it a little deeper. I would say I was about 8 to 10 feet from the chrono. I was shooting right through the middle, should I be shooting through the upper third?....I did not know that. Thanks for helping. Also, would the barrel length of the gun affect velocity?....I am using a commander size 1911.