Others Troyer(ish) rating system for UFT

[wolfmangreg]

@Franklink @Pesty3782 @isledweller @JoeWillie

Soliciting feedback from anyone, but tagged the members above because I know you've some experience with longer distance field target of some flavor (ultimate, extreme, high power, long distance etc.)

The nearest club offering this sort of thing is operating under the Ultimate Field Target banner. In a nutshell:
- Three targets per lane, 15 lanes
- Sub-50 fpe airguns shoot the near & middle targets (max 65 yards)
- 50+ fpe airguns and rimfires shoot the middle & far targets (max 100 yards)
- One forced position lane, standing with bipod

I help with the setup for most of the matches, & want to make a chart similar to the Troyer used in AAFTA so we can compare courses from one month to the next, year over year etc. The chart itself is a bit simpler, as I omitted the extra difficulty factor Troyer applies to shots over 45 yards. Think that factor makes sense in AAFTA Hunter class, as 45 yards is where pretty much every scope ever made starts to struggle with ranging by focus at 16x. Not a factor where yardage is marked and/or rangefinders allowed.
Toyed around with using a difficulty factor for shots past 50 yards, but didn't really like where it ended up. For example- my personal shooting notes show I tend to hit a bit higher percentage on a 1.5" kz at 65 yards than a 1" kz at 45 yards. With even a small difficulty factor applied past 50 yards, the chart showed the 65y/1.5" as more difficult than the 45y/1". Admittedly, only started noting this data for myself recently, so it's possible that good/bad weather days haven't balanced yet.

Didn't bother including a wind difficulty factor, as I can't think of any way to make it accurate. When we get wind, it's always variable in both direction and intensity... seems better to just describe the day overall in match reports . "Mostly light, only held off on a few targets", "Nasty gusts, constantly changing direction", "dead calm all day" (hey I can wish).

Might do away with the "extreme light/dark" & "extreme up/down" factors as well, unless I can scheme up a way to quantify them.

Arbitrarily redacted ratings of less than 20 or greater than 55, as we simply aren't going to set any of our targets outside those parameters.

Let me know what you think of the chart below, comment on correction factors & criteria, etc. Thanks!

 

[Franklink]

Extreme Troyer Factor

(Full credit goes to Brad Troyer on all of this. And thanks to CTAC for this particular image) I really enjoy analyzing the numbers for sub 20fpe field target matches, and that typically entails using Brad's chart. A few days ago I realized how cool it would be to extend this out, in both...

www.airgunnation.com

 

[Franklink]

The link may not sticks round long, but I've been using that Extreme Troyer Factor chart in the match reports for the original Extreme Field Target matches here in Arizona, the name was so good that a bigger organization liked it more and won the court battle so now it's Ultimate Field Target, but the same matches at the same place.

Anyway, it's been a good method of comparing difficulty from one match to the next, much the same way Brad Troyer's difficulty factors work in AFFTA matches.

(The current "Extreme Field Target" was originally "American Field Target" and was a once a year part of Extreme Benchrest. I'm not sure of the exact years, but from something like 2015 to 2021 it was "American Field Target." Ben Spencer started "Extreme Field Target" in 2020 as monthly (through the winter) matches. Lots of drama and lawyers later, and EBR renamed their American Field Target to Extreme Field Target, and now's Ben's matches (originally Extreme Field Target) are Ultimate Field Target.

Gotta love lawyers.)

 

[isledweller]

https://www.airgunnation.com/threads/extreme-troyer-factor.868700/[/URL

Thanks to the work by Franklink and others, I'm using the above also to set and use in my reports to try and keep things consistent.

 

[wolfmangreg]

Thank you both for the replies!

Match Director at the club I mentioned initially reached out to another organization to get details on having sanctioned matches. The conversation was quite discouraging. He then made contact with UFT (Ben, I believe) & went that direction.

Will use the basic formula you laid out:

11-50 yards = distance/kill zone size
51-75 yards = distance/kill zone size (1+0.125)
76-100 yards = distance/kill zone size (1+0.25)

Are either of you applying difficulty factors for wind, angle, lighting etc? Pardon if I missed those details in the link- saw that there was some discussion, but did not see a consensus.

What, if any, factor are you applying to the standing bipod lane?

How are you recording size of non-circular kz? We don't yet have enough heavy duty, circular kz targets to populate all 45 spots on the course, so are supplementing with rimfire silhouettes (1/5 scale, I think) welded to steel stakes via hinge. Thinking of averaging the longest measurement & shortest measurement for each of the four critters, but open to suggestion.

Thanks again to both of you for your patience with all the questions. No sense reinventing the wheel, so will stick with the methods you are using.

 

[isledweller]

1. Are either of you applying difficulty factors for wind, angle, lighting etc? Pardon if I missed those details in the link- saw that there was some discussion, but did not see a consensus.

2. What, if any, factor are you applying to the standing bipod lane?

3. How are you recording size of non-circular kz? We don't yet have enough heavy duty, circular kz targets to populate all 45 spots on the course, so are supplementing with rimfire silhouettes (1/5 scale, I think) welded to steel stakes via hinge. Thinking of averaging the longest measurement & shortest measurement for each of the four critters, but open to suggestion.

For the above.

1. I am not adding any multipliers in for terrain or environmental. Besides, all my targets are mounted on concrete blocks on the ground, so no up or down for us.

2. I am adding a 1.5 multiplier to the supported standing lane.

3. All our KZ's are round so that too would be a head scratcher for me. Sorry I'm of no help on that one.

Here is a snapshot of my last course planner

 

[wolfmangreg]

@isledweller - Much appreciated!

 

[Franklink]

I do very similar to @isledweller...

I typically just do the straight Extreme Troyer factor, without wind or dark or up or down. I'll sometimes include an overall Troyer with and without wind factored in, for a really windy match for example. And yeah, I just do the normal 1.5x difficulty for standing offhand shots like is used for non-assisted offhand in regular field target.

 

[wolfmangreg]

Thanks again guys- going to start recording this at the September match.
MD has all the necessary info to do retroactively for the last couple months, so will try to do those too.

 

[Franklink]

We have a few odd shapes, hearts etc. Best we can do for those for the Troyer calcs is the rough size of the opening.