.223 reloading info?

Otokiak

Otokiak

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I'm new to reloading and have ordered a re-load kit, brass, powder, etc and some dies for my .308, 30-06 and my .223 ... now my question is for the guys who own a PE-90 .223 Sig Arms semi-auto rifles ... what loads have you used in this rifle? What grain bullets? INFO? Thank you very much for any help,

Otokiak
Rankin Inlet, NU
CANADA
 
I have dome tons of reloading for my AR-15. I assume the two would be similar to load for.

Whats your barrel twist and I can point you in the right direction.

Here are some well known loads that work in the AR-15:

23.5 - 24 grains varget, 77 grain sierra match king (works with my 1/7" twist)

25 grains H335, 52 grain sierra match king (works with almost any twist)

25 grains varget or RL15, 69 grain sierra match king (works with 1/9" twist)


***AS ALWAYS START BELOW LISTED LOADS AND WORK UP***

You don't want a KBoom.
 
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60gr Vmax shoots to the same point of impact as the RUAG match/military ammo when loded to the same velocity and is potent on coyotes and anything smaller....
 
GP-90 is right around 3000 fps

I've loaded the following for similar velocities:
60gr. vmax, 24gr. H-335, BR-4 primers, Winchester Cases, OAL of 2.255", bullets were crimped in.

The PE-90s come with a 1:10 twist, limiting bullet choice to a mid weight bullet such as the 69gr. SMK & the Hornady 68gr. HPBT.
Longer stuff like the 77 SMK won't be stable in the 1:10 twist barrel.

Being in Rankin Inlet, I'd try the Extreme powders from Hornady. Varget (love it) & H4895 are the next two powders I play with under the 60 vmax.
 
what about trimming .223 cases? I've heard some do and some don't. lets hear some info about that. I'd like to load .223 on my Pro2000 and hate the idea of having to run brass through twice, once to resize and then out to the trimmer, then back in again to prime/powder and seat bullet.
 
Slavex said:
what about trimming .223 cases? I've heard some do and some don't. lets hear some info about that. I'd like to load .223 on my Pro2000 and hate the idea of having to run brass through twice, once to resize and then out to the trimmer, then back in again to prime/powder and seat bullet.
Click to expand...

I've found that the pressures arn't high enough to warrant trimming. Besides if they need trimming, they are done.

FWIW I load 52-53gr match bullets and am using IMR4198.
 
Slavex said:
what about trimming .223 cases? I've heard some do and some don't. lets hear some info about that. I'd like to load .223 on my Pro2000 and hate the idea of having to run brass through twice, once to resize and then out to the trimmer, then back in again to prime/powder and seat bullet.
Click to expand...

Measure and trim when required. I've seen many once fired cases that are too long.
 
Never start the load development too low it can cause more problems than hot loads! Stick to the tables in the books, they are so self concious about litigation you should be fine!
 
RePete said:
I have NEVER trimmed .223 yet.
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Thats strange.

Just days ago I started loading some .223 with once fired brass. I know because I bought the brass and loaded it the first time.

(remington brass with a mild load for those keeping score)

About 10% of the cases were over 1.760".

The other nice thing about trimming is having each case exactly the same length. Uniformity NEVER hurts when reloading.
 
223 brass grows.
Different brands grow different.

I found that FC grows very little, some types of military brass grow alot.

If you want to trim, and most likely you will have to, don't ever buy Lee trimmer - too unreliable in that calibre. After trimming about 300 cases the length gauge was eaten by the trimmer and started producing shorter than needed cases on me. In the end I manufactured my own with threaded part long enough to touch the bottom of the threaded hole in the trimmer.
 
svt-40 said:
If you want to trim, and most likely you will have to, don't ever buy Lee trimmer - too unreliable in that calibre. After trimming about 300 cases the length gauge was eaten by the trimmer and started producing shorter than needed cases on me.
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I don't understand the issue with the Lee trimmer. How would it get shorter and why would this be more prevalent in .223?

thx .....
 
From spinning the case on the gauge, the cutter cuts into the gauge, which happens to be softer steel. This is prevalent in 22 cal because the OD of the gauge is very close to the ID of the threads on the cutter.

The smaller is the gauge diameter, the higher torque and smaller the area where the cutter's blades bite the heal of the cutter.
 
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beltfed said:
Don't get me wrong, I'm not saying you neccesarily need to trim after every firing, but you will need to trim after a few. If you chuck your brass instead of trimming it, chuck it my way!;)
Click to expand...

As I said, I've NEVER had to trim .223 yet. The primer pockets grow before that, so I chuck it.
 
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