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Hunting
The Basics, Starting Out
IS the 30-378 too much with no brake?
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<blockquote data-quote="J E Custom" data-source="post: 1285415" data-attributes="member: 2736"><p>All good points but test proved that the braked rifle was no louder. We positioned the DB meter directly behind the shooters head to try and measure what the shooter heard. The only way to compare sound levels is with a DB meter. all studies are done using DBs and safe levels are set based on DB, So it was the logical to use this measuring instrument for a apples to apples comparison.</p><p></p><p>There is no question that an observer beside the muzzle brake will get hammered but the same is true if you are in front of the rifle without a brake. If you were in the service and had someone shoot over your head in combat you know how loud they are.</p><p></p><p>We also tested the angle theory of the ports looking for a quieter design and found another wives tale that was not true. brake efficiency was the main contributor to the lower DB level not the angle of the ports The most efficient brakes had the lowest Decibel level.</p><p></p><p>As to the ear protection, there are many types that you can wear while hunting that don't get in your way and can actually improve your hearing. I started using the hearing aid type while bow hunting so I could hear better and converted to them while rifle hunting rather than using ear plugs</p><p>that reduced hearing, The electronic ear protection allows you to hear better and when the rifle goes off they crop the sound to safe levels (The best of both worlds)</p><p></p><p>I can't (don't like shooting any rifle with ear muffs), so I look for alternatives, and the electronic ear plug type work best for me. </p><p></p><p>While testing the 50 BMG M82A1 we found that the factory fish gill brake (Ports are angled back at 45o ) required ear plugs and ear muffs to prevent sinus problems from the pressure wave. After experimenting with different angles we found that straight or converging ports produced far less DBs and pressure waves and only required ear plugs, plus recoil was reduced from 117 ft/lbs without a brake to 62.7 with the fish gill brake and 42.4 ft/lbs with the straight or converging ported brake with far less DBs.</p><p></p><p>All test performed were done so with no ulterior motive in mind and only to find the truth about muzzle brake designs, noise produced with different designs, recoil reduction of different designs.</p><p>accuracy effects of different designs. and perceived recoil and DB levels of different designs. Many times the results were not what I had though for many years and I had to change my beliefs and philosophy on many things.</p><p></p><p>I have not done any extensive testing on suppressors, so I cant comment on the pluses and minuses of them as of this moment. but I have done extensive testing on muzzle brakes and just reported the facts based on real world testing and not perception.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1285415, member: 2736"] All good points but test proved that the braked rifle was no louder. We positioned the DB meter directly behind the shooters head to try and measure what the shooter heard. The only way to compare sound levels is with a DB meter. all studies are done using DBs and safe levels are set based on DB, So it was the logical to use this measuring instrument for a apples to apples comparison. There is no question that an observer beside the muzzle brake will get hammered but the same is true if you are in front of the rifle without a brake. If you were in the service and had someone shoot over your head in combat you know how loud they are. We also tested the angle theory of the ports looking for a quieter design and found another wives tale that was not true. brake efficiency was the main contributor to the lower DB level not the angle of the ports The most efficient brakes had the lowest Decibel level. As to the ear protection, there are many types that you can wear while hunting that don't get in your way and can actually improve your hearing. I started using the hearing aid type while bow hunting so I could hear better and converted to them while rifle hunting rather than using ear plugs that reduced hearing, The electronic ear protection allows you to hear better and when the rifle goes off they crop the sound to safe levels (The best of both worlds) I can't (don't like shooting any rifle with ear muffs), so I look for alternatives, and the electronic ear plug type work best for me. While testing the 50 BMG M82A1 we found that the factory fish gill brake (Ports are angled back at 45o ) required ear plugs and ear muffs to prevent sinus problems from the pressure wave. After experimenting with different angles we found that straight or converging ports produced far less DBs and pressure waves and only required ear plugs, plus recoil was reduced from 117 ft/lbs without a brake to 62.7 with the fish gill brake and 42.4 ft/lbs with the straight or converging ported brake with far less DBs. All test performed were done so with no ulterior motive in mind and only to find the truth about muzzle brake designs, noise produced with different designs, recoil reduction of different designs. accuracy effects of different designs. and perceived recoil and DB levels of different designs. Many times the results were not what I had though for many years and I had to change my beliefs and philosophy on many things. I have not done any extensive testing on suppressors, so I cant comment on the pluses and minuses of them as of this moment. but I have done extensive testing on muzzle brakes and just reported the facts based on real world testing and not perception. J E CUSTOM [/QUOTE]
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IS the 30-378 too much with no brake?
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