Long Range Hunting Online Magazine


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

Reloading Techniques For Reloading


Reply

decision on chronograph

 
LinkBack Thread Tools Display Modes
  #8  
Old 07-20-2013, 11:02 PM
Junior Member
 
Join Date: Nov 2012
Location: DFW, TX
Posts: 28
Re: decision on chronograph

Quote:
Originally Posted by Damascus View Post
You absolutely need a chronograph if you plan on doing any sort of precision handloading... doing so without one is like "loading in the dark"..

I used my grandfather's Oehler for years, which quit on my last Christmas... Since then, I bought a Shooting Chrony Alpha Master series unit, and used it 4 times, first time, it clocked 75% of my shots... every time after that, when I would turn it on, I would immediately get an error message on the display - "Err 2" or sometimes "Err 9".. which indicate problems with the photosensors, but believe you me, I have tried it in every conceivable lighting imaginable... it just simply malfunctioned, permanently.

Since then, I got a Millenium, and it works wonderfully. I've also used Pro Chrono Digital as well, and recommend them both.
I've had a Chrony Gamma for about 10 years, and it would always record the MV on the display, but only send to the printer about 8 or 9 out of every 10 shots. It recently started giving me similar error messages - completely out of the blue. Chrony said to clean the sensors (which I already had). It's dead and I'm looking for another brand. :-O
__________________
M1AShooter
Reply With Quote
  #9  
Old 07-20-2013, 11:39 PM
Gold Member
 
Join Date: Dec 2009
Posts: 855
Re: decision on chronograph

Quote:
Originally Posted by dmax1800 View Post
I'm new to long range shooting and reloading. I've used the optimal charge weight method to develop a load for my 300 win mag. I think that I've got a load that will work. I've been having problems with the load not being consistently accurate from day to day. I sometimes shoot when its in the 70s and low 80s which might explain the inconsistency. I'm wondering if a chronograph would help determine what is going on with the consistency.
If your load is changing that much from day to day, you may have settled on a load that is a "false node". If you kept your targets from load development, you may wish to re-examine them and re-shoot some of the groups that show promise. A true accuracy node should be fairly wide in terms of the velocity window/powder charge that produces accurate shots. Consistency and repeatability are the hallmarks of an accuracy node. If you don't have those two things, you are outside of the node in your rifle.
Reply With Quote
  #10  
Old 07-21-2013, 06:34 AM
Silver Member
 
Join Date: May 2013
Posts: 142
Re: decision on chronograph

Quote:
If your load is changing that much from day to day, you may have settled on a load that is a "false node".
I've already done this a couple of times. Would get a 3/8" group with 73.0 grains one day, 3/8" group with 73.2 grains another day, and not even close with either on a third day. Then get a 3/8" group with 71.9 grains on 2 days, but a third day again not even close.

I've decided to get a ProChrono (its in my shopping cart at Midway) and see what's going on with velocities. Maybe that will help determine whats going on with my accuracy consistency. I'm shooting off of sand bags, so hopefully its not something I'm doing. Its a Benchmark #5 barrel, the stock has been bedded, the action trued and a Timney trigger installed with about 2 3/4 pounds of pull. It should shoot 3/4" groups every day. It has shot 3/8" groups, just not consistently.
Reply With Quote
  #11  
Old 07-21-2013, 06:50 AM
Platinum Member
 
Join Date: Jan 2008
Location: Northeast
Posts: 2,255
Re: decision on chronograph

Quote:
Originally Posted by B23 View Post
Spend $75 more and get a Magnetospeed V1 Chronograph.

In my opinion, their benefits will easily surpass their slightly higher price. Ask anyone who has ever used a Magnetospeed Chronograph and I would be shocked if 100% of those asked didn't agree.
+1. Save yourself some time, ammo, and aggravation due to variations caused by varied lighting conditions.
__________________

"Let us speak courteously, deal fairly, and keep ourselves armed and ready"-T. Roosevelt
Reply With Quote
  #12  
Old 07-21-2013, 10:31 AM
Silver Member
 
Join Date: May 2013
Posts: 142
Re: decision on chronograph

I like the idea of a magnetospeed not being light sensitive, but I'm concerned about it changing the POI. Anything hanging on the end of the of a free floated barrel has got to effect POI. If it does it once, will it be absolutely consistent? I'm not just after velocity, but also group size in trying to develop a load.
Reply With Quote
  #13  
Old 07-21-2013, 11:38 AM
Platinum Member
 
Join Date: Nov 2008
Location: SW Montana
Posts: 4,432
Re: decision on chronograph

Quote:
Originally Posted by dmax1800 View Post
I like the idea of a magnetospeed not being light sensitive, but I'm concerned about it changing the POI. Anything hanging on the end of the of a free floated barrel has got to effect POI. If it does it once, will it be absolutely consistent? I'm not just after velocity, but also group size in trying to develop a load.
Some rifles may change POI some may not, I have muzzle brakes that are heavier than my Magneto speed and they do nothing. I've come to the conclusion that I don't care what the magneto speed does to my groups because I'm getting solid, consistant velocity data every time I pull the trigger so I can shoot groups without it on if I want and still use less components than owning any other Chrono other than the Oehler.

I have several Shooting Chronys and they are a waste of money, you will not get relevent data from day to day with one and you can't really tell what is accurate data or not. I've shot loads from the same rifle over Shooting Chronys, Oehlers, and the Magneto speed and the Oehler and Magneto were right with each other and the Shooting Chrony was close on a couple load and over a 100fps of on others.
__________________
High Fence, Low Fence, Stuck in the Fence, if I can Tag it and Eat it, it's Hunting!

"Pain is weakness leaving your body"
Reply With Quote
  #14  
Old 07-21-2013, 11:50 AM
B23 B23 is offline
Gold Member
 
Join Date: Oct 2008
Location: Spokane, Wa.
Posts: 932
Re: decision on chronograph

When I first heard about the Magnetospeed Chronograph I did as much research as I could and read everything I could pull up. One of the first reports I read about the Magnetospeed there was some discussion about the bayo changing POI. Some claimed it raised their POI but they all said it had zero affect on their group size. I haven't used my Magneto all that much but I did use it on a couple different rifles that were night and day different from one another, 17hmr 17gr bullet & 300 Allen Express 230gr Berger, and I noticed no change in POI or group size. That's not to say it's not possible just that I didn't have any issues with POI changing.

IMO, the Magnetospeed is one of those "game changer" new products. After using it and then checking its accuracy by shooting it inline with a Oehler 35P then Broz doing the same inline test with his Oehler 35P, I feel 100% confident the Magneto is giving good information.

Most shooters that have chronographs, have had many. With the exception of the smart guys that stepped up and bought a Oehler right from the start, most people have had multiple different chronographs and they had multiple because non of them worked on a consistent basis. My dad had 3 or 4 before he got tired of messing around with junk and bought a Oehler. I know of many others shooters who have also bought 3-4 chronographs over the years because the ones they had only worked some of the time and the weather/sun/light conditions was always an uncontrollable variable. Not only does the Magnetospeed give good information but it sets up ready to use in, easily, 2 minutes or less and weather, sun or light has NO affect on how or if it works.

Oehler makes one of the finest consumer grade chronographs on the market and their customer service is beyond excellent!!! But, having used both the Magnetospeed and the Oehler 35P, for me, the Magnetospeed is the easy choice.

If you plan on getting serious about your shooting/reloading, save yourself a lot of frustration and either buy the Magnetospeed or a Oehler 35P. Over time you'll not only be money ahead but you'll be thankful you did.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Current Poll
Have You Ever Backpack Hunted?
YES - 62.38%
1,068 Vote
NO - 37.62%
644 Votes
Total Votes: 1,712
You may not vote on this poll.

All times are GMT -5. The time now is 08:34 AM.


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