Berger 109 Hybrid Verified BC

lte82

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I know a lot of guys are asking questions or waiting on there bullets to arrive, so I figured I'd throw out some numbers. I ran the 109's from 300 to 1000 yards at day break, and got a trued G7 BC of .295 in a Bartlein 5R 7T. While the BC improvement over the 105 isn't much to write home about, I was able to use the same charge weight and setting on the seater die and maintain great accuracy with only a small drop in velocity. Vertical dispersion is as good or better than the 105 hybrids, so my guess is that they are even more consistent BC wise.

If you have a bunch of 105's like I do, I wouldn't switch until you are out of them. But if you are out, I wouldn't be scared to make the switch!
 

Sheldon N

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Nice, thanks for the info. I'm also interested in the 109's once my stash of 105's starts to get low.

How do the meplats look compared to 105's? Do you think there's much BC to be gained by pointing?
 
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lte82

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Nice, thanks for the info. I'm also interested in the 109's once my stash of 105's starts to get low.

How do the meplats look compared to 105's? Do you think there's much BC to be gained by pointing?
The 109s have smaller meplats than the 105s, and are definitely pointed already. You could maybe close them up all the way, but I don’t know if that buys any BC? I think the selling point will be BC consistency and shrinking vertical at distance.
 

kthomas

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The 109's interest me. I have 4,000 105 Berger Hybrids to shoot through before I'll consider them though...
 
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Sheldon N

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The 109s have smaller meplats than the 105s, and are definitely pointed already. You could maybe close them up all the way, but I don’t know if that buys any BC? I think the selling point will be BC consistency and shrinking vertical at distance.
Probably wouldn't buy much if any. I don't close the meplats on the 105's all the way either so would be a wash.

On the plus side, pre-pointed is nice.
 
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47guy

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I know a lot of guys are asking questions or waiting on there bullets to arrive, so I figured I'd throw out some numbers. I ran the 109's from 300 to 1000 yards at day break, and got a trued G7 BC of .295 in a Bartlein 5R 7T. While the BC improvement over the 105 isn't much to write home about, I was able to use the same charge weight and setting on the seater die and maintain great accuracy with only a small drop in velocity. Vertical dispersion is as good or better than the 105 hybrids, so my guess is that they are even more consistent BC wise.

If you have a bunch of 105's like I do, I wouldn't switch until you are out of them. But if you are out, I wouldn't be scared to make the switch!
how far off the lands?

ive got a few loaded im going to shoot this morning at 100yds out of an 8T bartlein to see if they are going to stabilize like they say.
 

lte82

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how far off the lands?

ive got a few loaded im going to shoot this morning at 100yds out of an 8T bartlein to see if they are going to stabilize like they say.
.020 off more or less. They have the same SG as 105 hybrids. IMO 7.5 is better suited for both of those bullets, but 8 should work fine.
 
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47guy

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.020 off more or less. They have the same SG as 105 hybrids. IMO 7.5 is better suited for both of those bullets, but 8 should work fine.
thanks...im starting at about .023 off...agree about the 7.5T...my 8T does not shoot the 105 hybrids very well and ill be going back to the 7.5T now...ive been shooting the 108s in a couple of barrels but want to get back to the higher BCs.
 
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47guy

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@lte82

they shoot ok I could probably make them shoot but this barrel is at 1600 rounds and I’m not going to waste a lotta time with it.
I’ll try them In the next one.

109s..BRX..varget..fed205m..Peterson brass..Bartlein 8T
1-32.1
2-32.3
3-32
4-32.7
5-32.9
62DDF93F-7AC8-42CC-9958-D054AA4B3049.jpeg
3E1B64D6-8765-4C47-8B84-372972FFF491.jpeg
 
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Dthomas3523

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I’m about to have a new 6br chambered for these. Call me crazy, but I like a 5mph gun. It’s just easier for me to make wind calculations.

Looking at running 109’s around 2750-2800.
 

47guy

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I’m about to have a new 6br chambered for these. Call me crazy, but I like a 5mph gun. It’s just easier for me to make wind calculations.

Looking at running 109’s around 2750-2800.

youll get that easy...i just shot a couple of BR barrels and 2850ish was easy with 108g bergers and the 109s have about .023 less bearing surface.
 

jmornoinf

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So far so good with the 109s. Groups the same as the 105s. Will see at 1000yds in March?

In my gun at .020 off, the 109s are .003 longer to the ogive than the 105s.

Current load:
Gun: Impact Precision 6mm Creedmoor
Barrel: 26" Bartlien barrel 1:7 twist
Load: 41.2gr H4350
Speed: 3048 fps
 

anotherwannabe

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If you’re shooting same load as the 105’s how much slower are the 109’s vs 105?
 

47guy

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i know its a pretty narrow window but ill have to eat my words i think they will shoot in an 8 twist just not as well as they would in a 7.5.

i just threw 32.7g in some cases i need to get the second firing on and .010 off shot pretty well...i took it out to 1082yds and was 7.4mils with a 2.5 to 3mil left to right...same load with a 108g berger 10fps slower is 8.2mils so these are pretty slippery.
my 7.5 twist BRA will be ready tomorrow or tuesday ill play with the 109s in it a little and see what they do.


9A46BB7C-7B18-4F90-99B0-1D13BB3CB5DD.jpeg

C9ADE71C-2E6E-4BAC-8C0D-A90767B3AA5C.jpeg7F0FCE6B-5388-4E9F-8D16-58961441E45C.jpeg
 
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jmornoinf

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So far so good with the 109s. Groups the same as the 105s. Will see at 1000yds in March?

In my gun at .020 off, the 109s are .003 longer to the ogive than the 105s.

Current load:
Gun: Impact Precision 6mm Creedmoor
Barrel: 26" Bartlien barrel 1:7 twist
Load: 41.2gr H4350
Speed: 3048 fps

I am shooting the 109s at 41.2gr at 3048 and 105s at 41.0 at 3054
 

Gwain

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I just tested mine the other day. 1-8 twist, 26" PVA barrel, 39.3 of RL16 with BR2 primers at .030 off lands. Produced 3034 and was 7.1 mils to 1083 with a trued BC at .335
 

anotherwannabe

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My experience has been a little more "straight off the box" than others saying you need a higher than advertised BC

6 creed - 1/7 twist 29 inch kreiger, 40.6gr RL16, Alpha LRP, F210M, 2.795 COAL (jumping them about .98 ... yes you read that right).
3110fp (SD below 10 for 10 shot string)

.568 G1 BC from the box was getting me first round hits out to 1100 yards on fresh steel that was very tight on the water lines (within my margin of shooter variance)

1100 yard drop from my app is 7.86 mils, 1k is 6.59 mils - from that day
 
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anotherwannabe

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Probably worth noting:

In the same gun I was running the 105 hybrids with the exact same charge, but slightly different seating depth (for best groups) and they runs 3130fps. So 109's are 20fps slower than 105's for me and groups are nearly identical.

For the 105 hybrid the box says .536 G1 and I had to use .547 to be trued up beyond about 900 yards (I can only test to 1200 at my local) and that was able to get me hits on plate to 1500 in a PRS comp. I was walking it in for wind, but not elevation.
 
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Hunter Sykes

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Made the swap to the 109s mostly because I was tired of tipping the 105s.

Shot about 2k of them already and two PRS matches. Running them at 2891 in a 6 cheesecake (brx similar) and a G7 of .302. 1/7 proof barrel

I settled with .2 less varget than I was using with the 105s but before I dropped back I was getting 30fps slower consistently at comparable charge weights.
My impression so far is that I’m gonna thoroughly enjoy the 8k more that I have because they are super consistent.
 

Dthomas3523

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Made the swap to the 109s mostly because I was tired of tipping the 105s.

Shot about 2k of them already and two PRS matches. Running them at 2891 in a 6 cheesecake (brx similar) and a G7 of .302. 1/7 proof barrel

I settled with .2 less varget than I was using with the 105s but before I dropped back I was getting 30fps slower consistently at comparable charge weights.
My impression so far is that I’m gonna thoroughly enjoy the 8k more that I have because they are super consistent.
The tips on the 109’s seem to be much more consistent. At least visually. I haven’t ventured into tipping bullets.......yet.
 

just browsing

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Ran them up to 3100 without pressure in my 29” 6x47L. RL-16 and .020 off. I ended up in the 3040 range but it was only one of multiple nodes. Super easy to tune.

BC of .292 has seemed correct out to 700 but haven’t had a chance to verify beyond that.
 
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Hunter Sykes

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The tips on the 109’s seem to be much more consistent. At least visually. I haven’t ventured into tipping bullets.......yet.
Tipping isn’t hard but it is yet another step and if you aren’t careful when you swap lots you can smash a few before noticing it. Not saying that I’ve done that but not denying it either...
 

Hunter Sykes

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I’ve seen a few different calibers mentioned. Might help when you post info if you post what caliber as well.

I’ve got 500 of the 109s coming for a new build as well. Looking forward to shooting some.
Twist rate for bc truing is a must
 

Hunter Sykes

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Ran them up to 3100 without pressure in my 29” 6x47L. RL-16 and .020 off. I ended up in the 3040 range but it was only one of multiple nodes. Super easy to tune.

BC of .292 has seemed correct out to 700 but haven’t had a chance to verify beyond that.
what twist rate are you running?
 

Niles Coyote

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Over the past 6 weeks in 3 different weather conditions and wind vectors, I have narrowed down the B.C. that works in both Hornady 4DOF and JBM to that of .308g7 for 0-1000y

This is using it in a 6mm GT 7.5 Twist 26" Benchmark that's is flinging them 2951fps.
 
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hookedonbrass

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used .304 on Saturday out to 900y-1140y and was pretty spot on

6BR
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2745fps

@just browsing at 700 yards, you won't really notice anything tweaking the BC. you need to be testing it at further distance.


for example: if you bump the 105g hybrid BC from .275 to .287 you don't see any difference in output for elevation at 700y. but at 1000y it's a .2 mil difference.

same goes for the 109g hybrid and changing it from .292 to .304 for example.

they say a minimum of 800y for truing BC


i've talked to a handful of guys running the 109s in 1:7 twist in BR based calibers and we are all using .304 give or take.