Scatt for medium and long range (Palma)

artandscience · Post by **artandscience** » Mon Oct 22, 2012 10:05 pm

I'm an NRA/DCRA shooter (fullbore) and just picked up a Scatt to help with winter training.

I note that the F-coefficient everyone mentions is for 22LR or air rifle/pistol. Anyone know if the numbers (25-30) should differ significantly when shooting fullbore (.308) for 800-900-1000 yards in prone?

Wondering what other values I might need to change?

These are the values I currently use for shot options:

Bullet dispersion = 18mm = 0.75", which is what my rifle should group at 300yds
Shot moment = 0.3 seconds = guess as to my reaction time
F-Coefficient = 30 = total WAG for this, no clue what is right for fullbore
Control interval = 1 second = possibly too long but it seems like one should be able to hold a rifle steady for the 1 sec
immediately preceding shot release

Advice quite welcome.

thanks,
Stefan
Seattle, WA

artandscience · Post by **artandscience** » Thu Oct 25, 2012 12:45 am

Training tonight (40 shot) on the 300m ICFRA target, I ended up with an L-value average of 34.5, and my 10a0 is in the low 60% range (which I think cannot be terribly good). "Accuracy of Shooting" was 37.8mm. Can someone explain this last value for me? I'm mystified by it.

I think the L-value is good (a steady hold) but my 10a0 suggests that I'm inconsistent on the trigger pull/followthrough, ending up with a unreasonably large group dispersion.

Any advice?

thanks,
Stefan

RobStubbs · Post by **RobStubbs** » Thu Oct 25, 2012 2:10 am

Stefan,
Look at the eliptical factor on the summary screen, what does that tell you ? Also 60% 10.0a is quite poor. I think we look for around 95% for our regional shooters (not that they are all there).

If your triggering is poor then it will show up in the graphs depicting movement - email me back your scatt file if you want and I'll take a look. Will probably take me a week or two as I'm off to Finland next week.

Rob.

artandscience · Post by **artandscience** » Sun Oct 28, 2012 9:45 am

The 60% percent is on the 300m ISSF target (hardest fullbore target I know of) but my 10a0 jumps to 92-93% when I move to the 200m "Sniper" target. On what target are your shooters getting the 95% or better?

The 50m rifle target?

RobStubbs · Post by **RobStubbs** » Sun Oct 28, 2012 3:05 pm

artandscience wrote:The 60% percent is on the 300m ISSF target (hardest fullbore target I know of) but my 10a0 jumps to 92-93% when I move to the 200m "Sniper" target. On what target are your shooters getting the 95% or better?

The 50m rifle target?

Yes the ISSF 50m rifle target (which is harder than the the American version). I think though elite rifle scores are reasonably similar from 50 to 300 so I would expect similar figures. You could of course try the 50m targets on scatt and see how it compares.

Rob.

artandscience · Post by **artandscience** » Mon Oct 29, 2012 12:27 pm

I'll try the 50m target in the next day or two.

thanks much.

westerngriz · Post by **westerngriz** » Wed Oct 31, 2012 8:32 pm

The 50 Meter target is harder than the 300 Meter target. But, you should be in at least the 90% range. I am sure it will happen without too much training. It doesn't take long to be at 100% most of the time.
Matt

artandscience · Post by **artandscience** » Tue Nov 13, 2012 2:29 am

Up to the low 80s now. Slow work.

How long is ideal to break the shot? In Palma, my shot should be gone within 3-5 seconds max of the "Go On".

But I find I score higher when I take more time (10-12) seconds on the Scatt.

What's average amongst top flight shooters?

ShootingSight · Post by **ShootingSight** » Tue Nov 13, 2012 6:39 am

Apologies ahead of time for a tangential question, but in discussions relating to the benefits of lock time reduction (aka hammer swing time), there is an assumption that as the shot breaks you are more often tracking off target than on-target, and I have never seen an actual measured value for how fast you are tracking, in perhaps MOA per second.

Does the SCATT report these values, and if so, could several of you share typical numbers?

Thanks,

Art

artandscience · Post by **artandscience** » Mon Nov 19, 2012 8:19 pm

Hi Art - nice to see you on this forum as well..

Hmm.. well Scatt can be set to show follow-through (a period post recognition of the shot) and this shows which way you were tracking. Also, there is a delay value that can be added in the shot options that ensures that one accomodates for this movement. So a higher value would reward better follow-through.

I believe that the Speed indicator is exactly what you want. It seems to indicate the mm/sec tracking speed per shot.

Attached is the image from a recent practice I did.

TargetTalk

Scatt for medium and long range (Palma)

Scatt for medium and long range (Palma)

training results

change of target

Re: change of target

% up but so is time..