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Why standard velocity?

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10 comments

  • beantownshootah
    Probably because the gun can't handle the increased slide/frame impact you get from high velocity .22 ammo.

    (Draw your own conclusions about the quality of this gun).

    EDIT
    quote:soreshoulder:
    On the North American Arms website, they list the performance of various brands of 22 in their ultrashort barrel revolvers. The standard velocity target stuff seems to get higher velocity from the ultra-short barrel, maybe because the powder catches fire quicker. I am sure that is not the case in a rifle, but that means little to the owner of a pocket pistol.
    Well, to get technical, the powder grains contained in .22LR rounds should all be ignited at the same time by the primer detonation.

    I think what you mean to say is that target rounds usually use fast-burning powders to ensure consistent in-barrel ignition. High-velocity rounds usually get their higher velocities by using slower-burning powders that better take advantage of long barrel lengths, especially rifle barrels.

    Because of this difference in powder type, there may be a paradoxical effect where in REALLY short barrels, target rounds shoot faster than high-velocity rounds with similar bullet weights.

    Now, all that said, I strongly doubt any of this has anything to do with Phoenix arms ammo recommendations. I know as a fact that high-velocity .22s will cycle the Phoenix guns just fine.

    .22LR is a relatively low-energy round, and high velocity .22s really aren't all that much more powerful than ordinary .22s. Any quality .22LR gun should be able to handle unlimited numbers of high velocity .22LR cartridges, and in fact many .22 semiauto guns will function BETTER using these higher velocity rounds.

    I can't say I know of any other current manufacturer of .22 semi-auto pistols that recommends against using high velocity .22 ammo in its gun (ie not Ruger, not Smith, not Beretta, not Browning, etc).

    Unlike all those other makes, the frame of the Phoenix gun is made from low cost zinc-alloy, which is not particularly durable.

    Again, you can draw your own conclusions here.

    hp22szm5.jpg
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  • sandwarrior
    quote:Originally posted by jebib3
    I believe this is an ask the expert question. I have a Phoenix Arms HP22. In the manual it says that standard velocity ammo is recommended. My question is why? Regards, bib


    From what I've seen and heard these are not the toughest, best .22 out there. That's why you don't push it.
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  • SoreShoulder
    On the North American Arms website, they list the performance of various brands of 22 in their ultrashort barrel revolvers. The standard velocity target stuff seems to get higher velocity from the ultra-short barrel, maybe because the powder catches fire quicker. I am sure that is not the case in a rifle, but that means little to the owner of a pocket pistol.

    Standard velocity ammo is usually target ammo and is not loaded with ball powder, like the inexpensive, high volume, high velocity stuff. Maybe the finer target powder the standard velocity ammo is loaded with tends to ignite better.
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  • RCrosby
    O.K., now you just know that the next time I head down back to do some shooting I'll have to bring the chrono and test out this higher velocity in short barrels with standard ammo theory. Anyone else care to join in? I can only go down to 4 1/2 inches, but it still should prove interesting. Stay tuned.
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  • SoreShoulder
    The effect only seems present with the 1-1/8 barrel and certain loads of equivalent bullet weights

    Maybe the priming is more sensitive on target ammo, leading to fewer misfires.

    Zamak can be as strong as steel or a good grade of aluminum.
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  • Bamavol
    I have a Taurus PT-22. Taurus also recommends standard velocity ammo.
    Of course I do not always follow instructions and I fired high velocity ammo. I found that the rifling filled with lead that was hard to remove. So I assume that the twist is made for standard velocity ammo.
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  • rwfixem
    have seen problems with some of the old 22 semi-auto rifles. they were made before hi speed ammo so don't always work when fed other than standard velocity ammo.
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  • airmung
    I have a 1st issue prewar Colt Woodsman that recommends standard velocity only. This is definitely not a low quality cheap handgun.
    It's just that standard velocity is what the gun was designed for.
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  • sandwarrior
    quote:Originally posted by airmung
    I have a 1st issue prewar Colt Woodsman that recommends standard velocity only. This is definitely not a low quality cheap handgun.
    It's just that standard velocity is what the gun was designed for.


    Good point. Strength of the recoil spring. Slamming a slide back into a frame is what does the damage.
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  • fordsix
    customer bought two of the phoenix arms pistols ..a month later he asked me to torch the frames for him ..said they were POS
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