Need 9mm loads, Frontier CMJ bullets

Hoser-eh

Hoser-eh

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I have spent hours googling, and I need your experience.

I need load data: 115 and 124 gr. copper plated bullets, using Titegroup, Winchester 231, and WSF. This is what I have on hand.

Apparently the same data as lead is to be used for plated bullets.
 
I use 4.4 of win231 for my 124 grain hard cast lead bullets. Berries bullets recommends not to exceed 1500 fps with thier plated bullets. I think it is pretty much a non issue at 9mm velocities.
 
I loaded up 50 rounds with 4.0 gr Titegroup under a 115 gr. plated bullet.

My last experience with 4.3 gr of Win 231 under a 124 gr plated bullet was that it was WAY underpowered.

I have had excellent performance with 4.9 gr of WSF under a 115 gr. plated bullet. Just can't get any WSF these days.
 
Barrel length 5"

Frontier 115gr copper plated:
4.6 grain 231 OAL 1.135 gave me 1117 fps
4.5 grain 231 OAL 1.135 gave me 1068 fps

4.4 grain Titegroup OAL 1.135 gave me 1138 fps
 
9mm load recipe...

3.2 grains Titegroup under Frontier 147 grain seated at 1.100 C.O.L. for CZ

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Thanks for the data so far.

I have not found any data specific to copper plated bullets, such as CF.
Rainier's site led me to beleive that the same data as for lead is to be used.
FMJ loads are way higher for the same bullet weight than for lead.

I was thinking to use the same data as for lead, but load toward the max.

What say you?
 
Hoser-eh said:
Thanks for the data so far.

I have not found any data specific to copper plated bullets, such as CF.
Rainier's site led me to beleive that the same data as for lead is to be used.
FMJ loads are way higher for the same bullet weight than for lead.

I was thinking to use the same data as for lead, but load toward the max.

What say you?
Click to expand...

There are two factors when you load lead, plated or jacketed.

1) Peak pressure
2) Velocity

And remember that there are somewhat related but still SEPARATE.

The peak pressure is going to be about the same between lead and plated, however the velocity may be a bit different because of differences in friction.

With jacketed, with an identically shaped bullet, the peak PRESSURE will be higher because it takes a bit more pressure to swage the bullet into the rifling. But your velocity will be a little lower, greater friction and more of the energy from the powder has gone into swaging the bullet into the rifling.

The peak pressures for most 9mm loads occurs by the time the bullet has travelled about 1/4", meaning the base hasn't even left the case.

However there are lots of other factors, such as the length of the bullet and OAL etc, etc.
 
4.0 to 4.6 gr of Titegroup. Start with 4.0 and increase until it groups to your liking with your gun. It would probably be somewhere between 4.2 and 4.4 grains.
 
Cheers

dinsdale said:
My AIM 124 Load workup:
Bullet Manufacturer :AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 3.8 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 912.4 Power Factor: 113

Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.0 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 953.0 Power Factor: 118

Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.2 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 1006.2 Power Factor: 125

Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.4 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 1022.0 Power Factor: 127

Bullet Manufacturer : AIM Bullet Weight: 124 grains
Powder Type : 231 Powder Weight: 4.6 grains
Primer: CCI C.0.L. 1.100
Average Velocity : 1063.5 Power Factor: 132

Going to run up a few hundred of the 4.6 grain load to give a try.
Click to expand...
 
just tried some... 15yd's 115gr frontier RN/cci primer

4.0gr titegroup COL 1.125, ok results.

4.2gr titegroup COL 1.125, good results

4.4gr titegroup COL 1.125, excellent results grouped the best consistently.

going to try 4.3gr next and 4.5gr.
 
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