Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Reloading

Reloading Techniques For Reloading


Reply

RCBS Ammomaster chrono much high speed results?

 
LinkBack Thread Tools Display Modes
  #1  
Old 07-17-2012, 02:28 AM
Junior Member
 
Join Date: Mar 2011
Location: Spain
Posts: 20
RCBS Ammomaster chrono much high speed results?

Hello folks!

I have test some loads the other day, and was impressed with the results... Too many impressed to be true!

I'm getting about 3550 fps from a 222rem, with a 53 grain barnes XLC (blue coated). It was a compressed load of vectan SP7 fired from a CZ 527 lux, with 23,5" sporter barrel.

Then, i get 3050 fps from a 243 with 105 amax. It was fired from a M98 sporter rifle, with 24" barrel and vectan tubal 7000 powder.

None of them has pressure signs.

The day was hot, with bright sun, but i set the chrono with the light diffusers and put it just a little bit close to me, to get under the range shadow. The speeds seem too high for me (it would be great if they are true!).

Have you ever experienced wrong results with an ammomaster? I'm doing something wrong?

Thanks!!
Reply With Quote
  #2  
Old 07-17-2012, 04:25 PM
Bronze Member
 
Join Date: Feb 2012
Location: Southern Idaho
Posts: 46
Re: RCBS Ammomaster chrono much high speed results?

There are 2 things that I notice that really effects accuracy of that chronograph. Make sure battery is fresh. I use the battery a few times and then toss it/or use it somewheres else in the house. Next is make sure your shooting a few inches off the tops of the eyes like the directions state. Of those 2 issues, I have noticed when the battery gets a little weak, so goes the accuracy of that chronograph. Hope that helps and let me know if that helps..
Reply With Quote
  #3  
Old 07-17-2012, 09:37 PM
Bronze Member
 
Join Date: May 2012
Location: Texas
Posts: 57
Re: RCBS Ammomaster chrono much high speed results?

I think you know why:

"The day was hot, with bright sun, but i set the chrono with the light diffusers and put it just a little bit close to me, to get under the range shadow"
__________________
The terrain sure looks a hell of a lot different whe you'er crawling through it!

FUBAR,
Wounded Warrior Alumni
Reply With Quote
  #4  
Old 07-18-2012, 12:21 AM
Junior Member
 
Join Date: Mar 2011
Location: Spain
Posts: 20
Re: RCBS Ammomaster chrono much high speed results?

Quote:
Originally Posted by LongRangeBangin View Post
There are 2 things that I notice that really effects accuracy of that chronograph. Make sure battery is fresh. I use the battery a few times and then toss it/or use it somewheres else in the house. Next is make sure your shooting a few inches off the tops of the eyes like the directions state. Of those 2 issues, I have noticed when the battery gets a little weak, so goes the accuracy of that chronograph. Hope that helps and let me know if that helps..
Thanks for the input! I will try with a fresh battery. Maybe it's a good idea to get a rechsrgable one...

I try to shoot 10 cm over the eyes... That's about 4"... You think iy's ok?
Reply With Quote
  #5  
Old 07-18-2012, 12:23 AM
Junior Member
 
Join Date: Mar 2011
Location: Spain
Posts: 20
Re: RCBS Ammomaster chrono much high speed results?

Quote:
Originally Posted by FUBAR View Post
I think you know why:

"The day was hot, with bright sun, but i set the chrono with the light diffusers and put it just a little bit close to me, to get under the range shadow"
Hello Fubar...

Make sure that i will not do that way if i know that it's the wrong way...

What's wrong with that? Put it in the shadow? Put in the diffusers?
Reply With Quote
  #6  
Old 07-18-2012, 08:50 AM
Platinum Member
 
Join Date: Apr 2010
Location: Allen, TX
Posts: 2,608
Re: RCBS Ammomaster chrono much high speed results?

Lighting can be an issue and muzzle blast can fool the sensors.
Reply With Quote
  #7  
Old 07-18-2012, 09:38 AM
Junior Member
 
Join Date: Mar 2011
Location: Spain
Posts: 20
Re: RCBS Ammomaster chrono much high speed results?

Quote:
Originally Posted by rscott5028 View Post
Lighting can be an issue and muzzle blast can fool the sensors.
That's what i think... So i put in the difussers (allways put them in) and get the chrono just one or two feets closer than usually, to get under the shadow of the range roof.

Or maybe i'm wrong and the speeds are normal... But i don't think so...

Someone has bad experiences with that chrono? Any review?

Thanks!!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: RCBS Ammomaster chrono much high speed results?
Thread Thread Starter Forum Replies Last Post
Redding Ultramag vs RCBS Ammomaster 2 DanGuy48 Reloading 2 12-13-2012 05:07 AM
chrono speed, vs temperature D Scott Reloading 4 10-13-2011 03:03 PM
WTB - RCBS Ammomaster-2 jmermis Reloading Equipment and Components 0 05-16-2010 05:48 PM
High Pressure Flush System/High Speed Chambering Class Rustystud Gunsmithing 11 12-22-2009 11:26 AM
RCBS Ammomaster rost495 Rifles, Bullets, Barrels & Ballistics 2 12-12-2004 08:15 PM


All times are GMT -5. The time now is 02:29 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC