How much powder?

Sniffer

Sniffer

CGN Ultra frequent flyer
Super GunNutz
Rating - 100%
44   0   0
Location
Okanagan
So while loading 9mm I noticed that I`m getting a difference on min/max powder amounts between 2 different recipes

In my Lyman manual for 115 grain projectiles the figures quoted for Titegroup range between 4.0 and 4.5 grains whereas Campro`s load data (who makes the projectiles) states 4.5 to 4.8 grains of Titegroup

I made up two batches and played safe (both are under the lower quoted max) but am I missing something here? Do recipes from different outlets usually all quote similar figures or are their variances?
 
If speaking in .40SW, 200gr bullet, wanting to go 880FPS, in a specific 1911
Results from experimentation, not books

4.7gr titegroup with campro
4.5gr titegroup with zero
4.0gr titegroup with ares

These are tested loads with tested chrony in my gun
Different bullets seem to have different frictions in barrel
If books and manufacturers account for different brands, different results
Barrel lenght and make will play a lot too

If i was shooting 9mm 115gr, i'd tend to aim for 1100-1150FPS for my powder load (minor pf)
 
Min/Max is different for jacket bullets, for lead bullets and plated bullets. You may be seeing that difference, since the book may refer to jackets, whereas CamPro refer to plated.

And results vary from gun to gun. Their Max may be much too hot for your gun, or mild.
 
What is your pistol you are shooting this in?
I may have or know people that have loaded in one.
In the ipsc circles we do see a lot of guns
 
The Lyman data was obtained using a 4" universal receiver and a Hornady HP XTP projectile @ 1.090. The CamPro data is for their 115gr RN projectile @ 1.12 with no firearm data listed.

Do you own a chrono?

P.S. Whenever in doubt use the lightest load from a published source and work your way up to the velocity you want with the help of a chrono.
 
Last edited:
Use the lyman data (lighter charges) & work your way up watching for pressure signs. As you see, data isn't gospel, its a guide. I also shoot 115 campro's with titegroup. 4.2 grs gives me 1160 fps. The books tell me my load is below start weight, but its at max velocity. Chrono'd with two different chronographs. Start low & work up.
 
4n2t0 said:
The Lyman data was obtained using a Hornady HP XTP @ 1.090 and the CamPro data is for their RN @ 1.12.

Do you own a chrono?

P.S. Whenever in doubt use the lightest load from a published source and work your way up to the velocity you want with the help of a chrono.
Click to expand...

Yes, like I mentioned previously I stayed well within the range of the lower numbers quoted

Nope, don't have a chrono, can see the benefits of one for sure

I`m leaning towards a Magnetospeed (looks like it`ll have to be the more expensive variant as it will cover pistols too) or Steinert Superchrono (a guy at my range let me try his - super easy to use)
 
Sniffer said:
Yes, like I mentioned previously I stayed well within the range of the lower numbers quoted

Nope, don't have a chrono, can see the benefits of one for sure

I`m leaning towards a Magnetospeed (looks like it`ll have to be the more expensive variant as it will cover pistols too) or Steinert Superchrono (a guy at my range let me try his - super easy to use)
Click to expand...

I use a ProChrono. It's simple, accurate, and relatively cheap.
 
Check with Hodgdon's website for load data for Titegroup. Start at the min charge for the bullet your shooting and work up. I found the powder manufacturer's load data a better place to start for load development. Hope this helps.
 
What reason are you reloading for?

Ipsc or just accurate plinking? For my uspsa load I strictly measured power factor as it's accurate enough for man sized target out to 70 yards freestyle.

If I was shooting for accuracy is bullseye I'd probably develop an accurate load starting low and going higher. In increments of 0.1gr.
 
I develop a load starting at or below the START load, and load 10 rounds each of 0.3 g increments up to MAx.

Then i shoot them for accuracy. Usually one load is much better than the others. I note that laod for that gun.

If you have several guns of same caliber, repeat for each. Each may have a best load.

With Titegroup, best accuracy is with loads around 3.5 to 3.9 gr (in my guns).
 
You must log in or register to reply here.
Back
Top Bottom