Inconsistent broadhead flight can be caused by insufficient fletching or weak spine.
What vanes are you using?
I would think 300 would be sufficient at your specs, but if you wanted to test the effect of stiffening the dynamic spine, you could reduce draw weight a bit and see what happens...
If you shoot far enough, you will eventually see a POI difference between BH and FP even out of a perfectly tuned bow because a BH induces more drag. But within typical hunting ranges, it's usually possible to get BH and FP to hit effectively the "same" spot (i.e., hit together within the...
If you have one arrow weight and speed data point, you can estimate speed at any other weight with a high degree of accuracy using the following method:
Calculate kinetic energy at known weight and speed: KE in ft-lbs = Arrow Weight in gr × (Arrow Speed in fps)² ÷ 450,380
Use KE calculated in...
Because you don't hunt through paper. Broadheads hitting alongside field points is the ultimate goal of tuning for a hunter. Paper tuning to a bullet hole tear is a good starting point, but it doesn't guarantee that BH will hit with FP. Putting a BH on the arrow changes its aerodynamics, and the...
As your experimentation with arrow spine/weight/length demonstrates, modern compound bows aren't really very sensitive to arrow spine and can typically handle a wide range of dynamic spines. Tuning the arrow to the bow is a traditional bow concept that doesn't have much relevance to a modern...
I'll be hunting Colorado during muzzleloader season with a mixed group of archery and ML tag holders. I drew ML cow tag 2nd choice to preserve points for next year and will be hunting alongside my dad who has an archery tag. Main focus will be getting a bull into bow range for him.
+1 for Guadalupe Mountains and Big Bend NP's. I visited them many times when I lived in Midland.
Arizona Snowbowl near Flagstaff if you're into skiing and the conditions are good.
These next suggestions may be too far north of your intended route, but if you do swing up toward the Four Corners...
Pinwheel spine calcs suggest shortening the arrow 2" would compensate for the extra front end weight and effectively stiffen the arrow slightly.
29" C2C with 100 gr point, 15 gr insert, 9 gr nock, 3 vanes at 7 gr each:
27" C2C with 100 gr point, 50 gr insert, 9 gr nock, 3 vanes at 7 gr each...
You said only the string was changed, but I assume you mean string and cables. Pin gaps tightening after the string/cable change suggest that draw weight increased, likely because the new cables are slightly shorter than the old ones. More tension in the cables can produce more cam lean and...
There's plenty of public land scattered across the state. Pick something nearby and go deer hunting. Archery season starts Sept 15. https://mdc.mo.gov/discover-nature/places
Try to find a local with a river boat and work your way into an invitation to go fish gigging. Some stretches of the...
If you cut a 340 at 28" carbon-to-carbon with 116 gr on the front and 35-40 gr on the rear, you would be real close to "optimal" spine per Pinwheel. 300 is still probably a better choice, but you may be able to get a 340 to work if you trim it down.
There's a SNOTEL station at 39.31°N, 109.53°W, 8302' ASL called East Willow Creek. Below is an example of data you can get from that station (average air temperature for month of October since 2004).
Link to East Willow Creek station: https://wcc.sc.egov.usda.gov/nwcc/site?sitenum=461
Link to...
You're probably on the weak side of what spine charts/calculators would recommend, but more info is needed to better evaluate spine:
Carbon-to-carbon arrow length?
Field point/broadhead weight?
Insert weight? 25 gr half-out and 16 gr HIT (shown below) are commonly used with a 5mm Axis, but...
For extended heavy use, I want a gas-powered saw, but for what you described, I would choose battery-powered. Don't have to worry about fuel fumes/leakage in the cab or keeping fresh fuel on hand. Put a 12V inverter and charger in the truck so you can charge batteries on the go.
Glad you made it out and best wishes on finding and fixing the cause of the pain.
I'm surprised your inReach location accuracy was so poor. During normal use, mine will get me within a few yards. I wonder if hitting the SOS button changes something about the way it functions or which satellite...
2 blade fixed head with modest cutting diameter and a long, gentle taper angle. Magnus Stinger fits that description and is hard to beat for the money. Cutthroat and VPA would also be good options if you want to spend a little more.
I would be careful with the advice of all the folks I mentioned (and anyone else). Approaching unconventional ideas with a healthy dose of skepticism is generally wise. As I said, I don't fully agree with everything Saladino says, but I do see merit in his general argument and appreciate the...