What is your opinion on 100 gr vs 125 gr broad heads for

2546 Views 10 Replies 7 Participants Last post by JimD, Jan 11, 2020

JimD

Discussion Starter · Jan 6, 2020

I have learned a lot from the board. I have ordered some 20" Decimators at 325 gr and the Blood sport hunters at 300 gr, and bloodsport witness at 325 gr to try.

I have the CP whisper Renegade 390. Crony says the 20" bolts that cam3 with it shoot (at 12 feet 365 to 369 fps) with 100 gr fp seem to hold a good group with out to 50 yards. The same bolts with 125 fp gave 355-358 and good groups.

The old Muzzy's 125s I had were 10 years old and did not shoot well at all. With cheap bolts they could go anywhere and not any better with the CP better bolts. I threw away the old Muzzys that I had for the old quad that broke. Even the FB heads took off even with the old 22 " Barnett bolts?

I am guessing that I am looking for some type of mechanical broad head since I had flyers with the fixed BH but
the question is which weight 100 or 125 would give you a better combination out to 50 yards for a hunting bolt?

Suggestion on which mechanical head may fly straighter for this set up?

Thanks, Jim

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Generator

· #2 · Jan 6, 2020

Personally, I use 125's due to the increase in FOC that in my experience tightens groups at >50 yards. I use Shwackers and Thorns...both have good repeatability. I just purchased TruGlo Titanium 4 blades, have not shot them.

Keeping FOC near 20% works well with 360 fps arrows.

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Deerstalker

· #3 · Jan 6, 2020

Generator said:
Personally, I use 125's due to the increase in FOC that in my experience tightens groups at >50 yards. I use Shwackers and Thorns...both have good repeatability. I just purchased TruGlo Titanium 4 blades, have not shot them.

Keeping FOC near 20% works well with 360 fps arrows.

My FOC runs 19/21% for all of my 20" arrows. FWIW

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Deerstalker

· #4 · Jan 6, 2020

Easy arrow FOC % calculation:

1. Measure arrow length nock to insert.
2. Measure arrow balance point with all components, nock to balance point.
3. Subtract 1/2 arrow length from balance point length.
4. Divide this number by arrow length & times 100 for FOC %.

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Gabowman

· #5 · Jan 7, 2020

Ive always shot 125 gr heads but this past year I switched to 100 grain heads. Reason being, the 125's was just burying up deeper in the dirt after past thrus. So....to gain a bit of speed I switched when I ran out of 125's. With the 100;s Im still getting pass thrus and the heads still bury up....just maybe not quite so deep. Those 25 grains didn't effect my groups, but the arrows do fly a bit flatter IMO. BTW, my bows are advertised at 330 and 370 fps. I'm probably shooting more like 315 and 350 fps.

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Huntersthompson

· #6 · Jan 7, 2020

If your shooting lighted nocks you need more weight up front to compensate .

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JimD

Discussion Starter · #7 · Jan 7, 2020

You have convinced me to try the Real mechanical broadheads since the old Muzzys seem to fly off with the arrows that came with the xbow and the old Barnett quad bolts.

I was going to try the Rage Hypo, Swhacker and NAP to see what works best since the two old fixed blades seemed to take off in strange directions with three types of arrows I had.

Also ordered some Blood sport and Decimators in 20" since hunters seem to like them.

Any suggestions? I am curious where I keep reading that the retaining piece needs to be changed or reinforced out on these heads to keep them from opening in the air. Is there some good info on what to do for these?

Thanks for the help.

Out of town for couple of days but the gear will be in by this weekend when I get back and I am ready to figure what works for the cross bow.
Chrony on the bow and got 365-369 with 100 gr and about 10 fps less on the 125 with field points from about 10 feet out.

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Huntersthompson

· #8 · Jan 7, 2020

The nap spitfire crossbow bh need no retaining band. Make sure it says crossbow on package.

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Tapp-Nation

· #9 · Jan 8, 2020

The fact about 125s vs 100

Better penetration, increased efficiency of the bow, increased accuracy, slightly lower noise of the bow

Loss of a few feet per second

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TX_RDXguy

· #10 · Jan 8, 2020

I'll add to the rational for the 125s. You're bow has plently of KE so you can shoot a heavier arrow and take advantage of the points noted above. You can also shoot larger diameter cut broadheads with little concern about penetration.

As for which mechanical broadhead to use. There are many that are XBow approved that will fly right. Look at the blade width and stay away from anything less than .035 or they will be prone to breaking easier than a wider blade. I prefer 3 or 4 blade heads and 1.5" diameter cut or larger. I currently shoot a 4 blade, 2" diameter cut Pro series Grim Reaper in 125 gn and it's deadly.

Bear Canidae Brown bear Recreation Carnivore

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JimD

Discussion Starter · #11 · Jan 11, 2020 (Edited)

Walmart had the 100gr swhackers on for 5$ hope it was a good buy also had the mossy oak decimators on for 2$ each so I bought the few that were left. Got to shoot better than the old muzzys that I had.

let me ask another question as I learn from the board.
Been reading about shooting the new arrows to see how they group. Then taking the flyers and turning the half moon nock to see if they shoot better. For decimators or others with a glued nock what is the best way to get the nock loose so you can turn the arrow?

FOC. Reads not clear. Is the measurement from the nock indent to the tip of the arrow or to tip of the arrow insert. If you read three different article they read a little different.
JimTx

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