For those of you who have seen the Magnetospeed chronograph discussed in the CF portions of this forum, it works great with .22 rimfor ammo too; I tried it on a .22 RF rifle today for the first time. All you have to do is go to the projectile menu and choose 22/shot/slug (just listed as shot/slug in the instruction manual) and select that, then select non-magnetic, so that the machine is looking for a lead bullet.
The very first time you install it on a rifle it is a little fiddly (but still not as fiddly as a photocell type chronograph no matter how many times you set one up); after the one install learning curve, it's really simple and quick to set up and great to work with, very little effort compared to any photocell type chronograph, plus you can do it without having to wait for a shutdown on the firing line.
Today's first time with a .22 RF was the result of a dealer friend acquiring two different batches of promo .22 ammo for resale; the 50 round boxes of both makes did NOT have a bullet weight printed on the boxes, nor did they state whether they are HV, Std. velocity or subsonic. Well, we now know that they are HV and when he pulls a couple of bullets out of the remaining 40 in each box, we'll know what the bullets weigh too. After analyzing the results of the 2 strings, I've decided that a good future project will be to grab at least 5 rounds (10 is preferred) of every ammo I have, plus any that I can scrounge from others, and run a string of each to evaluate for exteme spread and SD; there was a clear winner in today's two, and it explains, just looking at the extreme spreads, why one brand and type may be more accurate than another before we even get to the preferences of individual rifles, lol. If/when I get around to this, I hope most of them are less erratic than one of today's was. I haven't tested enough .22 RF ammo with either the my old (photocell type) chronograph or the Magnetospeed to know which (if either one) of todays ammos is typical of non-match grade ammo; I sure hope the one batch isn't typical!
The very first time you install it on a rifle it is a little fiddly (but still not as fiddly as a photocell type chronograph no matter how many times you set one up); after the one install learning curve, it's really simple and quick to set up and great to work with, very little effort compared to any photocell type chronograph, plus you can do it without having to wait for a shutdown on the firing line.
Today's first time with a .22 RF was the result of a dealer friend acquiring two different batches of promo .22 ammo for resale; the 50 round boxes of both makes did NOT have a bullet weight printed on the boxes, nor did they state whether they are HV, Std. velocity or subsonic. Well, we now know that they are HV and when he pulls a couple of bullets out of the remaining 40 in each box, we'll know what the bullets weigh too. After analyzing the results of the 2 strings, I've decided that a good future project will be to grab at least 5 rounds (10 is preferred) of every ammo I have, plus any that I can scrounge from others, and run a string of each to evaluate for exteme spread and SD; there was a clear winner in today's two, and it explains, just looking at the extreme spreads, why one brand and type may be more accurate than another before we even get to the preferences of individual rifles, lol. If/when I get around to this, I hope most of them are less erratic than one of today's was. I haven't tested enough .22 RF ammo with either the my old (photocell type) chronograph or the Magnetospeed to know which (if either one) of todays ammos is typical of non-match grade ammo; I sure hope the one batch isn't typical!
