POI shift with matrix 380

Crossbow Hunting

Moderator: Excalibur Marketing Dude

Karl
Posts: 79
Joined: Fri Jun 10, 2016 5:33 am
Location: North Queensland, Australia

Re: POI shift with matrix 380

Post by Karl »

Ok thanks I'll see what happens tomorrow. If no good I will re-zero with a red dot.
Karl
Posts: 79
Joined: Fri Jun 10, 2016 5:33 am
Location: North Queensland, Australia

Re: POI shift with matrix 380

Post by Karl »

So I took a week to get back to the range. I have never drilled down on the bows accuracy, mostly shooting at 20 yards for the hunting I was doing so this is what happens when you start shooting longer ranges :)

Appreciate any opinions on below. Apologies for the links this site didn't like the bbcode I use for photoraphs.

Brace height. The string had settled against the pads during the week in storage.
I adjusted it to about 4mm from the pads, couldnt remember if this is the correct amount, its a bit more than 1/8"

Results
Diablo bolt and 150 grain field, tip, 400 grains
The crossbow velocities are shown, very impressed, average around 365fps, only 2-3 fps variance.

3 shots using same arrow .75" group at 40 yards.
https://i.postimg.cc/SNKP0b7X/group-2.jpg

Adjusted zero, did'nt exactly pan out. next group was way down to the right. I'm prepared to consider I 'maybe' adjusted the turrets incorrectly. Okay group size, 1" exactly.
Rezored, got it to bull as shown, 1.68" group ( excuse the random 22LR holes)
https://i.postimg.cc/VkqnDdrX/group3and4.jpg

I was running out of time, so brought it into 20 yards and shot 3 different arrows to target.
Shot about 4.5" high of centre. Group size 1.8". Is 4.5" high POI at 20 yards indicative of a 40 yard zero, or do you think the POI should be lower?
https://i.postimg.cc/44jW0Hd0/final-group.jpg

The bow is still strung but I took the front off for storage. Will take it back out in a few days and see if its still zeroed, get some solid groups at 20 yards...

Thanks for any critique on the above.

* just checked my notebook and I wrote some of the some of the decimals wrong in the speed readings. The whole part of the numbers are correct though
Post Reply