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I am really excited to bring this article to readers of dayattherange.com with permission from the author Trent — over on The Highroad Forum. This journey of Trent’s peaked my interest from his first post because it directly related to an experience of mine. One of having researched and read as much as I could about reloading the 5.7×28 cartridge, that research discouraged me from reloading for this cartridge at all. This was after I already had a set of dies and once fired factory brass of known origin fired by myself or Darrell my long time friend and shooting partner.
Now there are many which have reloaded this cartridge successfully, I just made the decision with so many additional requirements of this cartridge (special lacquer on the case etc) that it was not worth Darrell’s or my safety. So it will be awesome to track this journey Trent is taking us on to see how it ends up, and I want to be the first to say be very careful and hope all ends well.
Preface Edit 1/2/2014:
WARNING ABOUT MAXIMUM LOADS AND USE OF UNDOCUMENTED LOADS.
This thread documents use of powders in the 5.7x28mm cartridge that is not found in any current printed reloading book. (And later, some that ARE). I will make note when I am using PUBLISHED data. Unless I indicate I’m using published data, assume that I’m a nut job and don’t do what I do.
All testing to date was done ONLY with the PS90 rifle, not with the FiveSeven handgun.
I TAKE NO RESPONSIBILITY FOR USE OR MISUSE OF DATA CONTAINED IN THIS THREAD. PERIOD. THERE IS AN INHERENT DANGER WITH GOING OFF THE BEATEN PATH. IF THERE IS ANY DOUBT AS TO WHETHER YOU SHOULD USE THIS DATA AS-IS, PLEASE TAKE NOTE THAT I AM USING BODY ARMOR TO SHIELD MY FACE FROM MY RIFLE WHEN TESTING LOADS. THAT SHOULD TELL YOU SOMETHING! JUST BECAUSE I DIDN’T BLOW MY FACE OFF (YET) DOESN’T MEAN YOUR RIFLE WILL BEHAVE AS KINDLY AS MINE. POWDER VARIES LOT TO LOT AND YOU MIGHT USE DIFFERENT PRIMERS, TECHNIQUES, ETC, AND GET *DRAMATICALLY* DIFFERENT RESULTS.
(By “dramatic”, I mean your rifle may explode, where mine didn’t. Or vice versa. We’ll see where this all leads this year…)
This is part 3 of the series of videos and possibly the final of the initial review series. I say initial because I plan to keep very detailed records on the number of trimmings of each caliber run through this trimmer and report back.
As with the second video this idea was brought about by questions via email and private messages I have received from the inquisitive readers that have seen the first two videos. This is by no means a scientific experiment meant to provide an unquestionable answer. It is meant to help those with concerns or questions about noise discern the difference between the two tools I had running on the reloading bench during the first review/video while bringing about a little more clarity to the actual noise level of the CTS Gen2 Trimmer.
During this video on display is my old IPhone with a decibel meter on it. Again not meant to be scientific I know the IPhone is no where near capable of providing a true DB reading, but I believe it does assist in giving us an idea of the noise level of both devices. One other thing to keep in mind is that anything on or attached to the bench will only reverberate the noise or hum given off from these devices and there are 3 presses attached to this reloading bench at the time this test was conducted, but all loose items were removed.
DB Meter reading: Baseline when absolutely quiet in the shop — 50DB
CTS Gen2 Peak Meter Reading — 78DB
CTS Gen2 Average Meter Reading — 75DB
CTS Gen2 Average Noise Level — 25DB
Hornady Trio Peak Meter Reading — 91DB
Hornady Trio Average Meter Reading — 88DB
Hornady Trio Average Noise Level — 38DB