Magnetospeed Bayonet Bullet Strike - delayed problems - PSA

hookedonbrass

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Minuteman
May 16, 2018
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Montpelier, Virginia
I've been using a magnetospeed V3 for a little over a year. Shortly after getting it and using it on a wiser precision mount - I got a projectile strike on the bayonet. I got complacent and didn't double check the spacing. My fault entirely.

Anyways - I've been using the unit almost weekly ever since with no issues, until recently.

About a month ago I was shooting and it started giving me "sensor" errors, and cutting off, and doing other funky things. I changed the batteries which helped me get through the rest of the session. I took note that it was over 95 degrees outside.

next time out a week later, also hot as hell - same problem. So now i'm trying to figure out WTF.

I take it out a third time (on a much cooler day) - no issues.

next outing - 95+ degrees - issues again. shade moves over me - issues go away. what the hell? heat should not have any affect on the function of the unit.

I email Ryan and he confirms heat should not have any affect.

I take it out again on 95+ degree day and unit is acting crazy. sensor errors, crazy speeds high and low, cutting off. so i email Ryan again and he answers me ASAP. I let him know the problem is persistent and not going away, can i send it in for him to look at. I finally mention the projectile strike from last year. He immediately says "yup, that's your problem - seen it many times. and it usually is delayed months before user starts seeing issues.


my best theory is that the imperfections/cracks caused by the projectile strike are made worse when the unit is extremely hot. when the bayo is cool and not "expanding" from the hot days - the issues don't surface. I could be wrong - but it definitely appears temperature sensitive. but only because of the existing imperfections in the bayonet from the strike

so - in short - if you have a bayo strike and the unit is still functioning for you - just beware that it might give you problems down the road. Replacement bayonets are $182 shipped. expensive mistake.

Always double check your spacing!

shout out to Ryan at Magnetospeed for being responsive. New bayo ordered today.

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47guy

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Jul 15, 2017
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reno,nevada
If using the 123s and the head gets jarred it will do what your saying...some thin foam tape on the inside of the battery cover fixes that.

Try setting the sensitivity to medium...I’ve had mine for about 3-4yrs and use it A LOT...it stopped picking up rounds Sunday set it to medium and working fine again.
 
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FN-Whitney

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Jun 14, 2018
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I'm sure you are not the first call or the last with that problem Ryan has had. Thanks for sharing the information, probably more than one person reading this has had a strike and sounds like it is a problem waiting to happen.
 
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hookedonbrass

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May 16, 2018
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I'm sure you are not the first call or the last with that problem Ryan has had. Thanks for sharing the information, probably more than one person reading this has had a strike and sounds like it is a problem waiting to happen.

yeah, that's why i wanted to post it. I know a few guys who have gotten projectile strikes and it hasn't cause any issues....yet.

so I just wanted to let everyone know in case they have had a strike, and if not - to remember why it's important to always check spacing even if you think you bayonet didn't move (because they use a mount or something).


i got so used to just throwing my wiser mount on and off and it lining up perfectly so i stopped checking spacing. eventually the little set wheel loosened up and the bayo shifted upward a hair. boom - strike.
 

winniedonkey

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I have the same Wiser MS mount, no bullet strike however the recoil (223/308) caused the computer to start acting up. Once out of the mount, zero issues. Just a heads up.
 
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