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Posted: 10/20/2019 11:11:09 AM EDT
I don’t reload and have just been inputting the factory advertised muzzle velocity into my ballistic app. I’m aware the number varies from what I’m getting out of my rifle under whatever atmospheric conditions I’m shooting. My question is, are the factory numbers typically far enough off to justify the expense of a chrono? I’m shooting out to 1000 yards and I’m sure little details start to matter more. Thanks for any input.
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FL, USA
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Posted: 10/20/2019 11:19:23 AM EDT
[#1]
Originally Posted By MSC182:
...My question is, are the factory numbers typically far enough off to justify the expense of a chrono?... |
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TN, USA
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Posted: 10/20/2019 11:44:30 AM EDT
[#2]
Why You Can't Trust Muzzle Velocity On Boxes
The printed velocity will normally be lower for the reasons mentioned in that article. Whether it's enough to affect YOUR calculations only you can say. If you always shoot the same ammo then it's probably not worth purchasing a chrono since once you figure out the difference it would just gather dust. It's kind of your call. |
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Posted: 10/20/2019 12:20:36 PM EDT
[#3]
Quote HistoryOriginally Posted By SACraig:
Why You Can't Trust Muzzle Velocity On Boxes The printed velocity will normally be lower for the reasons mentioned in that article. Whether it's enough to affect YOUR calculations only you can say. If you always shoot the same ammo then it's probably not worth purchasing a chrono since once you figure out the difference it would just gather dust. It's kind of your call. |
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Posted: 10/20/2019 1:08:12 PM EDT
[#4]
Pick up a Magnetospeed Sporter. Accurate and relatively inexpensive. Don't buy a super cheap chrono as you will be buying another better one within a year.
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Posted: 10/20/2019 1:17:58 PM EDT
[Last Edit: 44-40pro]
[#5]
I have been using a $100 Gamma Chrony for the last 20 plus years with ZERO PROBLEMS. I use it when working up new loads and after any significant component lot changes. It has been consistently accurate for all these years.
Guess I need to run right out and spend some more money. OP for what your needs are I can say without hesitation that one of the Chrony Series devices will be worth every cent you spend on it without going into hock for something you'll only need/use a few times a year. IT IS one of those "better to have it and not need it, than to need it and not have it " type items. ETA: I'm in the DFW are. IM sent. |
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Posted: 10/20/2019 1:30:04 PM EDT
[#6]
Chrony brand are the biggest POS out there and yes I owned one. If yours works then consider yourself lucky but I would never recommend anyone buy one.
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Posted: 10/20/2019 2:29:01 PM EDT
[#7]
Quote HistoryOriginally Posted By Rob01:
Pick up a Magnetospeed Sporter. Accurate and relatively inexpensive. Don't buy a super cheap chrono as you will be buying another better one within a year. |
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Posted: 10/20/2019 2:38:45 PM EDT
[#8]
Grab it. It's a very good chrono and very accurate and easy to use.
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Posted: 10/20/2019 5:58:59 PM EDT
[#9]
Thanks for the replies everyone. I ended up buying a MagnetoSpeed Sporter.
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TN, USA
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Posted: 10/21/2019 5:17:22 AM EDT
[#10]
Quote HistoryOriginally Posted By MSC182:
Interesting article thanks. I do shoot the same ammo so your point about it’s usefulness is valid. That said, if I purchased an inexpensive one and gathered data that equated to more hits in a match, I think it might be worth it. You will enjoy the Magnetospeed though. They are very good and very reliable. I've had one a bit over a year and an old Shooting Chrony before that. I personally much prefer the Magnetospeed. |
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Posted: 10/21/2019 7:37:03 AM EDT
[#11]
Quote HistoryOriginally Posted By MSC182:
Thanks for the replies everyone. I ended up buying a MagnetoSpeed Sporter. I've seen extreme spreads of ~100fps out of the same box of Hornady ELDM. |
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Posted: 10/22/2019 8:07:11 PM EDT
[#12]
The chrono is a good investment. I've never gotten results from a stock rifle that matched the data printed on the box of factory ammo. I also typically don't see results that are a close enough match to the data in a reloading manual to not support having a chronograph if you are shooting out to 1000. A change of 50 or 100 fps starting velocity starts to get more significant as distance extends.
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Posted: 10/22/2019 8:08:05 PM EDT
[#13]
Quote HistoryOriginally Posted By rob78: Congrats. It'll be useful now and when you start reloading. Because you will start reloading and it'll all make sense once you find the first load that performs out of your rifle. I've seen extreme spreads of ~100fps out of the same box of Hornady ELDM. |
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KY, USA
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Posted: 10/25/2019 1:09:07 PM EDT
[#14]
I started with Magneto Speed and loved it for 3 years. I sold it to a buddy getting into the game and bought a Labradar. WOW is all I can say for it.
I shoot 100% suppressed and got tired of the POI Shift when working with Load Development. It is a Very expensive tool that gives me Awesome information. I don't Know what I would do without it. If i am trying to hit that Sub-Sonic barrier. I can load 5 rounds and shoot them at the house to see where they are. Then I can build a smaller Ladder test and see what Powder Charge has the best groups later. It saves me a Bunch of powder. You will now spend MORE money and start loading Awesome Performance loads for your rifle. It will change your outlook on factory ammo. |
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Posted: 10/26/2019 8:12:04 AM EDT
[#15]
Quote HistoryOriginally Posted By mcbjus:
I started with Magneto Speed and loved it for 3 years. I sold it to a buddy getting into the game and bought a Labradar. WOW is all I can say for it. I shoot 100% suppressed and got tired of the POI Shift when working with Load Development. It is a Very expensive tool that gives me Awesome information. I don't Know what I would do without it. If i am trying to hit that Sub-Sonic barrier. I can load 5 rounds and shoot them at the house to see where they are. Then I can build a smaller Ladder test and see what Powder Charge has the best groups later. It saves me a Bunch of powder. You will now spend MORE money and start loading Awesome Performance loads for your rifle. It will change your outlook on factory ammo. I expected improvement. Anything would be better than the chronos I'd owned before. I just didn't expect how much better it would be. Well worth the cost. |
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