The earth tilts on its vertical axis and well . . . . that put a damper on this thing. ( it's winter time - cold and dark - {sigh} )
It was a "warm" day here though in Central Upstate NY at mid to upper 40's and the wind was damn near dead calm. ( slight breeze ) As it was Saturday - I wasn't working so it was also daylight for a change.
I haven't shot any of my guns in a couple of weeks - just friggin' busy @work and - - - the aforementioned lack of daylight plus it is December. ( typically cold )
So . . . taking advantage of the day -- I took out my "project" gun and am pretty sure that I'm finally getting close to a tune that I'm relatively happy with. Crappy cell phone picture of it below. Taipan .22 Long, 700mm CZ barrel, Donny Sumo @the front of it. The last time I got to shoot with it was a few weeks ago - the last time we had half decent weather - and I was reasonably happy with the setup @that time --> .216 27.5g NSA's at 974'ish fps. I was hitting my 40 yard zero pretty well ( dime size 5 shot groups ) but knew that I still needed to do some refining on it.
I dig the long barrel - but boy oh boy - it is ever just that - LONG. I've actually been shooting it without the moderator up front as it is just kind of "unwieldy" now being so darned long. I recently saw (youtube video?) or read in here maybe (?) something about moderators potentially having positive / negative effects on accuracy. Clipping would be an obviously bad thing. "Smoothing out" airflow - having a positive effect on harmonics could be a good thing - or something like that. Well ... I'm like "ok fine" - I'll bring it with me and add yet another 6" to the overall length and see what does or doesn't happen. I setup two targets at my known zero and fired off five shots at each - five w/out the moderator, five with it. No difference at all - BUT - it is quieter with the moderator. So there's that - come next summer when I'm looking to take out woodchucks - quieter would be a plus.
So anyway - I decided to take it out to 100 and shots were wandering 1.5 - 2" to the right. I googled on my cell phone a little bit - was this "spin drift" that I'd also recently read about and if so how to correct? ( there was no wind - why the drift? ) I came across a post from in here - someone else experiencing something similar - advice was to "go a little faster". Operative in that post was increment it up a ~little at a time~ faster. {shrug shoulders} "Why not? I've got my chrony with me - what have I got to lose?" So I did.
Readers digest - small increments in speed can really make BIG differences over larger distances - out beyond 80-90-100 yards. I took it up to mid 980's - 984'ish is what it wound up averaging - just 10 fps faster and those shots out at the 100 yd mark tightened right up. Amazing. Weather is supposed to be similar tomorrow - hopefully wind will be cooperative too and with any luck I'll remember to grab a photo or two if I hit some good groups. I want to learn how to do video . . . someday.
So for now, and I'm hoping maybe this will be *the* tune and then it gets switched "don't touch it mode!", (lol) the current tune is:
huma reg in it at 135, power plenum, .216 nsa 27.5g slugs @984 fps
It was a "warm" day here though in Central Upstate NY at mid to upper 40's and the wind was damn near dead calm. ( slight breeze ) As it was Saturday - I wasn't working so it was also daylight for a change.
I haven't shot any of my guns in a couple of weeks - just friggin' busy @work and - - - the aforementioned lack of daylight plus it is December. ( typically cold )So . . . taking advantage of the day -- I took out my "project" gun and am pretty sure that I'm finally getting close to a tune that I'm relatively happy with. Crappy cell phone picture of it below. Taipan .22 Long, 700mm CZ barrel, Donny Sumo @the front of it. The last time I got to shoot with it was a few weeks ago - the last time we had half decent weather - and I was reasonably happy with the setup @that time --> .216 27.5g NSA's at 974'ish fps. I was hitting my 40 yard zero pretty well ( dime size 5 shot groups ) but knew that I still needed to do some refining on it.
I dig the long barrel - but boy oh boy - it is ever just that - LONG. I've actually been shooting it without the moderator up front as it is just kind of "unwieldy" now being so darned long. I recently saw (youtube video?) or read in here maybe (?) something about moderators potentially having positive / negative effects on accuracy. Clipping would be an obviously bad thing. "Smoothing out" airflow - having a positive effect on harmonics could be a good thing - or something like that. Well ... I'm like "ok fine" - I'll bring it with me and add yet another 6" to the overall length and see what does or doesn't happen. I setup two targets at my known zero and fired off five shots at each - five w/out the moderator, five with it. No difference at all - BUT - it is quieter with the moderator. So there's that - come next summer when I'm looking to take out woodchucks - quieter would be a plus.
So anyway - I decided to take it out to 100 and shots were wandering 1.5 - 2" to the right.
I googled on my cell phone a little bit - was this "spin drift" that I'd also recently read about and if so how to correct? ( there was no wind - why the drift? ) I came across a post from in here - someone else experiencing something similar - advice was to "go a little faster". Operative in that post was increment it up a ~little at a time~ faster. {shrug shoulders} "Why not? I've got my chrony with me - what have I got to lose?" So I did.Readers digest - small increments in speed can really make BIG differences over larger distances - out beyond 80-90-100 yards. I took it up to mid 980's - 984'ish is what it wound up averaging - just 10 fps faster and those shots out at the 100 yd mark tightened right up. Amazing.
Weather is supposed to be similar tomorrow - hopefully wind will be cooperative too and with any luck I'll remember to grab a photo or two if I hit some good groups. I want to learn how to do video . . . someday.So for now, and I'm hoping maybe this will be *the* tune and then it gets switched "don't touch it mode!", (lol) the current tune is:
huma reg in it at 135, power plenum, .216 nsa 27.5g slugs @984 fps
