vpexp
Active Member
Len, just received my Tac15 today. Thanks! Did you have to paper tune yours? If so would you mind describing your procedure? thanks in advance.
Good advice. I recently got a set of three and a set of six TAC 15 Radial Crossweave Arrows. I was surprised to find 1 out of the six to be heavier, yet match up with the weight of 2 of three in the other set in weight (grains). The 3rd of the three could not be measured because two vanes had been damaged in shipping (then stripped to use as a bare shaft).Among other things he told me they that they sometimes shoot groups using the same arrow repeatedly.
You wouldn't happen to have some fps chrono data for the TAC 15 at "Arrow Rest", 50-yards or 100-yards or XX-yards using 100 grain points?I did a rough drop test this morning at the range. It needs to be verified again in the field.
Okie dokie, thanks.No, only the 406 fps at 5 ft with the field tip.
Saw where another person who has lots of experience with his TAC 15 is getting the same number as I got above with 100g field tip.428g = 392 fps (085g field)
443g = 387 fps (100g field)
468g = 377 fps (125g field)
My understanding - people were getting 400+ fps with 100g field points...
Very confusing as to what one should expect from the TAC 15 using normal 100g or 125g hunting weights.
Hello LenHow will you use the accurate data, why is it important to know, are you feeding it into a ballistics program, if so which one? I have not found a program that seems like it can deal accurately with such low speeds and BC's,
UPDATE - I got back at the range this afternoon as the weather improved. There was still some crosswind but not much. Mostly a headwind as to direction.
I shot groups at 40, 50 and 60 yards. From a bench with front bag, rear unsupported. Notice that only one of the groups had any significant vertical. That one shot at 60 yards was a shocker. Imagine being shocked by an extra, measly ONE INCH of vertical with an arrow at 60 yards.
After I get my drops worked out and get into practice mode, I will have to shoot at separate dots for ranges under 70 yards so I don't waste arrows by hitting them in a tight group. Can you even imagine that kind of a problem in archery practice at those distances?
The PSE TAC 15 crossbow is everything that I hoped for in accuracy potential. I will install an anti-cant scope level and an ACI (for uphill/downhill) before I go out again. Since I used various aiming points nothing can be told about drop by viewing these photos. I'll summarize the drop from 20 out to 100 yards at some future point in my testing.
I'll be consulting with Bryan Litz, the Berger Bullets' ballistician, about how to go about estimating a BC from my drops and from chronographed velocity changes. Then I can play around with drop tables generated by a ballistics program in order to correct for altitude and temperature out in the mountains this fall.
I know it sounds crazy to be talking about ballistics programs when shooting an arrow but this PSE TAC 15 is unbelievable. I hope to try for a deer out to 100 yards if the drops and accuracy testing continues to go well as I stretch the target distances.
Bernie
I sell levels and ACI's in my LRH Gear Shop. You need to match the scope tube diameter when ordering the level. 30mm or 1 inch. Same with the mounting system for the ACI.
As a cheap crank backup, consider a socket wrench, You'll probably never need it anyway.