5.7x28 reloading data.

[Jetman]

I'm still looking for data to be able to reload for my FN five-seven. Anyone care to share?

 

[Skip]

Accurate Arms Powder Data

 

[Skip]

A simple websearch turned up this info too.

"This info is taken from the Guns and Ammo website and I'm not responsible if you use this info.

Just wanted to get it posted here before they purge there file or have a crash.

Read the article here. http://www.gunsandammomag.com/cs/Sat...D1198098376868




5.7x28 LOAD DATA* Bullet Bullet Weight (gr.) Powder Primer Starting Load (grs.) Maximum Load (grs.) Max. Pistol Muzzle Velocity (fps) Max. Pistol Muzzle Velocity (fps)


Hornady V-Max 35 Winchester 231 Remington 3.5 4.5 1,850 2,475


Berger HP Moly 40 Alliant Unique Win.Small Rifle 3.5 4.3 1,750 2,040


Hornady V-Max 40 Accurate No. 5 Federal 205/td> 5.0 6.8 1,800 2,400


Nosler SP 45 IMR 7625 Win. Small Rifle 3.2 4.2 1,650 1,840


Sako HP 45 Hodgdon HS-6 CCI 400 5.0 6.0 1,700 1,925


Hornady Spire Point 45 VihtaVuoriN328 Federal 205 3.5 4.3 1,675 1,890


Nosler Ballistic Tip 50 RamShot True Blue Lapua Small Rifle 4.5 5.4 1,650 1,950


Sierra HP 53 Alliant Power Pistol Lapua Small Rifle 3.8 4.8 1,580 1,915


Nosler Partition 60 Hodgdon Lil Gun CCI-400 5.0 6.0 1,475 1,725


Winchester SP 64 Winchester Action Pistol Rem. 3.5 4.2 1,275 1,475


Army FMJ 68 RamShot True Blue CCI-400 3.5 4.4 1,290 1.525



WARNING: The loads shown here are safe only in the guns for which they were developed. Neither the author nor InterMedia Outdoors Inc. assumes any liability for accidents or injury resulting from the use or misuse of this data."

If it were me, I'd go join the FN website where this came from or the 5.7X28 forum. A phone call to Hodgdon on Monday will get you more data than you can use. They are great folks over there!

 

[Broom_jm]

Lyman's 49th has a fair amount of data for this tricky little cartridge, along with a set of warnings that would probably dissuade me from buying a gun chambered in this round or reloading for it. Shooting a whole bunch of tiny bullets really fast has never appealed to me, frankly. If it floats your boat, and you can lay out the cash for ammo, I'm all for it.

Be careful loading this round.

 

[randygun]

how much box 30 - 65 box

 

[Paul30]

Five Seven Forum

This is a five seven forum. They have a reloading section. Interesting round. I have read it is much more sensitive to variations. Be careful reloading this particular round.


FiveseveNForum.com • View forum - 5.7x28 Reloading

 

[nucone]

I have been handloading the 5.7x28 round for about 7 months. As others have already indicated, the fiveseven forum has the best information I have seen on reloading this round. Be aware that some posting on that forum list loads that I would never use in attempting to achieve very high velocities. Some also load this for the Thompson Contender and do not clearly indicate so in their posts.

I highly recommend purchasing Lyman's 49th and using that data as a starting point to work up your loads. The first (and last) time that I used the Accurate Powder load data identified by Skip, I achieved the following result immediately;

Not being smart, I continued shooting and quickly achieved the following result;

This round is very sensitive to not only the charge but, the bullet seating depth. The maximum load specified in Lyman is the starting load specified in Accurate (RED FLAG). Additionally, for the 35gr V-Max bullet load data; the OAL specified in Lyman is 1.525" where in Accurate it is 1.491". The difference in velocity between the two OAL in the data is about 250 fps. That is also what I noted via chronometer measurements. For the same powder charge, bullet, primer, etc.; a bullet seating depth of just 0.030" deeper results in definite signs of overpressure whereas, the other does not.

My recommendation is to stick to the Lyman data and be safe.

 

[Broom_jm]

Man, when you're separating a case that far forward of the web...that's scary! Look at the bulge around the web, as well. It's very unusual to be able to visually see case head expansion like that! No micrometer needed!

 

[03A3]

No between the seperation and the bigtime bulging that's not looking good at all.
And from what I can see of the primer it looks as flat as can be.
If you didn't get hurt or tear something you got lucky.

 

[HavokCycle]

n/m

 

[Broom_jm]

Havok,

I don't know if you realize this or not, but what you just did was copyright infringement and can get you in a lot of hot water with Lyman. I would strongly suggest you take that post down, or at the very least a moderator will come along and do so.

Lyman goes to great trouble and expense creating that data, so that folks will buy their book. Posting it in a public forum like this, w/o their written consent, is just begging for a lawsuit.