Thread: Frustrating arvo at the range. Powder charges.

Originally Posted by Tentman

So the 1/3 moa groups my 223 HB shot with a magnetospeed on the muzzle were flukes?? If so then how about the 1/2 moa ones shot with a std weight Tikka?? Ive shot hundreds of groups with various magnetospeeds and never ever detected any change in group size. Like any device you attach to a rifles muzzle some rifles will show a change in point of impact . . . But thats another thing.

Not saying they were flukes, nor would I say that about anyone's groups

I do not own a magnetospeed but have seen feedback from people who have used them saying that the point of impact can change with it fitted vs it being off and the potential for it to alter barrel harmonics. The reason I suggested the removal when testing group size was to eliminate this potential variable. Also so that only group size is being measured as the velocity had already been established.

That is very interesting that it has not altered group sizes in your tests, thank you for sharing your experience