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porting

ironroadironroad Member Posts: 3 ✭✭
edited January 2002 in Ask the Experts
i have a bar in 300 win mag, anyone know the best method to reduce recoil, it didnt bother me at 30 but at the age of 50 shooting that son of a gun is a bit much.
is it better to port the barrel of have a muzzle break installed
thanks in advance for ant sugestions
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Comments

  • ironroadironroad Member Posts: 3 ✭✭
    edited November -1
    whats the good and bad about porting rifle barrels?
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  • rsnyder55rsnyder55 Member Posts: 2,526 ✭✭✭
    edited November -1
    I had my Weatherby magnaported and can't really think of anything bad about it. It reduced the 300 Wby Mag to about 30-06 recoil.Unless you really look, you would not notice the slot are there. I understand people next to you hear it louder, but from behind the rifle it is great.
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  • He DogHe Dog Member Posts: 51,593 ✭✭✭✭
    edited November -1
    It also reduces the velocity of your bullet by something a bit less than 50 f/s per each inch back from the muzzle the port is located.
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  • East BayEast Bay Member Posts: 98 ✭✭
    edited November -1
    Hedog, where did you get that one? I have never read that about the velocity issue.... My 30-.06 has the BOSS on it & is a loud sucker but the kick is not bad at all! I am debating bout putting a brake on my Weatherby. When I'm hunting I never feel the kick... it is only at the range that the magnum has a wallop!
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  • rsnyder55rsnyder55 Member Posts: 2,526 ✭✭✭
    edited November -1
    Since I had my rifle chronographed before and after, I did not find any reduction in velocity or accuracy. Of course, for magnaporting to work, it is most effective a the end of the barrel.For additional information you may want to check out www.magnaport.com
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  • rsnyder55rsnyder55 Member Posts: 2,526 ✭✭✭
    edited November -1
    Since I had my rifle chronographed before and after, I did not find any reduction in velocity or accuracy. Of course, for magnaporting to work, it is most effective a the end of the barrel.For additional information you may want to check out www.magnaport.com
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  • rsnyder55rsnyder55 Member Posts: 2,526 ✭✭✭
    edited November -1
    Since I had my rifle chronographed before and after, I did not find any reduction in velocity or accuracy. Of course, for magnaporting to work, it is most effective a the end of the barrel.For additional information you may want to check out www.magnaport.com
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  • He DogHe Dog Member Posts: 51,593 ✭✭✭✭
    edited November -1
    Eastbay you will not, of course, see a reduction with a boss, because the barrel is not effectively shortened, no worries. However with porting you are effectively shortening the barrel by some amount when you allow gasses to escape prior to the muzzle. Barrel length affects the velocity of bullets by about 50 fps per inch, as determined by chronographing different barrel lengths, and in one of Jon Sundras articles, but actually taking barrels and progressively sawing 1 inch peices off the barrel and chronographing the barrels at each new length. Porting reduces velocity most noticably on pistols where the effects are more pronounced, but also affects rifle barrels to a lesser extent, thus my statement of something less than 50 fps. that is chronograph results. As the post above would indicate, it may not always be the case, but I am not sure how you would know in advance whether it would affect your rifle or not. [This message has been edited by He Dog (edited 01-25-2002).]
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  • offerorofferor Member Posts: 8,625 ✭✭
    edited November -1
    This is true for handguns. Every handgun test I've ever read on a ported model showed an average of 50 feet per second lost over the unported model of the same gun. Just don't choose the slowest loads to start with, is my attitude. The other theoretical effect would be flash from the ports directed upward toward the sight picture, depending upon the angle of the porting, but that's a variable you'd have to check out for yourself on the range, day and night. Some guys don't like a lot of muzzle flash, and I would imagine porting would increase that effect a bit above the barrel line.
    "The 2nd Amendment is about defense, not hunting. Long live the gun shows, and reasonable access to FFLs. Join the NRA -- I'm a Life Member."
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  • niklasalniklasal Member Posts: 776 ✭✭✭✭
    edited November -1
    Just the other day I went to see about getting a ported 357. I asked the gun clerk if he had any experience with the flash from porting. He told me that they tested it at their range, turning off all the lights and firing a ported 357 taurus, and a glock 22. He said the porting did not create that significant a flash.
    NIKLASAL@hotmail.com
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