Re: Muzzle breaks
Posted: Thu May 11, 2017 7:42 pm
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Eer ....Why? A normal rifle 30cm back from the muzzle of a 308 ~150-190 Db, where the RCO walks up & down + 120-90Db behind the ditch 500 & 600 Bisley (for reference) ~70-80db - at the tree line edge carpark ~60db thats the same as normal speech (unbraked / no ear defs on) vs a MB rifle & at the same place ~90 Db. The brake concentrates the sound pressure wave and sends it backwards between 30 & 60 degrees either side of the rifle line of sight where it generates sound levels that are damaging to hearing. Why should i retreat to my car, windows closed to put on my shooting glasses had & adjust my ear defs over them because its now unsafe to my hearing to do so some 30 foot back from a braked rifle?Fedaykin wrote:I must admit I have been following this thread with interest especially as I own a braked rifle and have another on order.
It turns my mind back to some interesting conversations I had with a company that makes specialised in ear protection a few years back when I was shooting with the HME boys of Offas Dyke and the FCSA.
In many ways whilst brakes can be anti social people who are complaining about them are missing a fundamental issue when it comes to sport shooters and hearing protection...the VAST MAJORITY are wearing inadequate hearing protection for the rifles they are shooting regardless of it having a brake or not!
Many rifles you should really have in ear and external protection at the same time! Those people hanging around the points tut tutting about the braked rifles with little or no hearing protection on are more than likely damaging their hearing with the rifles they prefer.
My underlying point beyond the debate about braked rifles is a significant proportion of those who participate are not only wearing inadequate hearing protection when shooting but are also rather lax about what they do on a range when it comes to hearing protection.hitchphil wrote: Eer ....Why? A normal rifle 30cm back from the muzzle of a 308 ~150-190 Db, where the RCO walks up & down + 120-90Db behind the ditch 500 & 600 Bisley (for reference) ~70-80db - at the tree line edge carpark ~60db thats the same as normal speech (unbraked / no ear defs on) vs a MB rifle & at the same place ~90 Db.
Define normal rifle! I'm sorry there are plenty of unbraked rifles out there that produce dangerous levels of noise even a fair distance back from the point.
The brake concentrates the sound pressure wave and sends it backwards between 30 & 60 degrees either side of the rifle line of sight where it generates sound levels that are damaging to hearing.
Yup, and so do rifles with out breaks...
Why should i retreat to my car, windows closed to put on my shooting glasses had & adjust my ear defs over them because its now unsafe to my hearing to do so some 30 foot back from a braked rifle?
That is an interesting question and in the end this is about personal opinion but for me anybody on a range should have hearing protection on them at all times! If there is firing happening then that protection should be on! So under those circumstances you wouldn't need to retreat to your car to put them on. When I am on a range regardless of how far back I am from the points I have hearing protection on if there is shooting happening. Having shot with the HME guys that includes down at the butts...
Your missing the fundamental issue the sound levels from them to innocent bystanders other shooters & people preparing their kit (including their hearing protection) is above the levels internationally recognised to damage hearing +80Db's. The NRA's lane separation is only to prevent injury by gas & debris blast it does little for the hearing of those of us well behind the FP.
I appreciate at Bisley there is an ebb and flow of people onto the points probably makes things inconveniant but considering the hearing damage that can be sustained from and gun I refer to my above points...keep hear protection on you when somebody is shooting
I agree with the point about firers wearing both plugs & defenders.