Significant Difference in trajectory between fairly similar 5.7 ammo? + Mini review of Ruger 57.

[Rand]

So, I was out breaking in the new ruger 57..
The sights were wack out of the box. took about 20clicks up and 10 left to be close.
For some reason it was much more fun when I could hit paper at 30ft.

After I got it dialed in some freehand.. I switched between fiocchi hyperperformance defense (20$ per 50 box) and federal red box FMJ $32/50 box


1750fps vs 1655fps? in these 2 5.7 varieties.

the red box 1655 was significantly low.. even at 25-30ft..
how common is this? I realize if I'm shooting .22 stingers its going to be way off vs subsonic 710fps varmint rounds.

Got it dialed in what I would consider pretty good.

This was more rapid fire. 21shot mags on this ruger.
The covered holes were 8 fiocchi and the uncovered were federal red box fmj
both shot about 30ft and target was aprox 1.5ft lower than my position.
Had a couple wingers. The one a casing bounced off the roof of the pavilion and hit me in the face
Its definitely the most forceful ejecting pistol I own. the casings basically land on each other 90% of the time... makes pickup easy.

It will likely get a red dot in the future but the iron sights are decent.. unlike my ruger security 9 which i can barely hit the broad side of a barn at 75ft

I hit the big steel 19x out of 20 at 125ft. after I figured out its shooting slightly higher at 125ft vs 30ft.
iirc its 10"x12" plate. The plate pic is 10x zoom .. some other guy shot the leg I swear (last year)

Overall thumbs up. price was $404 out the door.

 

[jhellwig]

I have considered a gun in that caliber but wanting it to catch and have more ammo selection or at the very least have more reloading info for it. Right now I am shooting 357 for less than what the 5.7 usually costs.

 

[Rand]

I have considered a gun in that caliber but wanting it to catch and have more ammo selection or at the very least have more reloading info for it. Right now I am shooting 357 for less than what the 5.7 usually costs.

I debated not purchasing for that very reason, but the ammo is definitely coming down PSA was 19.99 a 50 box which is almost 22 mag territory.
of course 9mm is down to 20-25cents for fmj range ammo.. hard to argue with that.

 

[samven]

It is my understanding that the 5.7 is a nightmare to reload. It seems the cases are so thin the neck/shoulders collapses during resizing.

 

[jhellwig]

It is my understanding that the 5.7 is a nightmare to reload. It seems the cases are so thin the neck/shoulders collapses during resizing.

I hadn't read that. I read that there is a coating on the casings that needs to be there to cycle properly. Don't know if that is for everything or just those weird FN magazines.

The guns don't seem that interesting either other than the Ruger LC Charger.

 

[HyundaiAbuser]

Surely that is due to how the rounds exit the barrel and not any sort of significant drop at 30 ft at those velocities. You could throw rocks with less difference in point of impact than that at 1/50th the velocity. My M&P 10mm does the same thing with flat nose vs hollow point loads at similar distances whereas my beretta M9A1 is very consistent POI with just about everything so I'd say its down to the gun.
Congrats on the ruger, I've always been interested in those and it looks like its shooting well for you.

 

[wwillson]

It is my understanding that the 5.7 is a nightmare to reload. It seems the cases are so thin the neck/shoulders collapses during resizing.

A neck-expanding die would probably help considerably. I personally have little interest in reloading small cartridges like the 57. The small volume case makes the cartridge very sensitive to powder charge weight. 0.1 grain delta can make a big difference in chamber pressure. When I feel like trickling every load, I might consider reloading this cartridge.

 

[burbguy82]

Cool gun

Yes, between brands/products there can be a pretty big swing in velocity. Normal. There can be a change in SD even between lot numbers, same ammo, same brand, just different production run.

If you plan on shooting this gun alot, or want most consistency, buy a case in lieu of single boxes, you wil get best accuracy this way. Every case, check your zero.

 

[Rand]

I was wondering what the actual mechanism for it to be shooting that different was?

On another note, I definitely have the middle-aged eyeballs now. Had to take pictures of the sight to see which way to adjust
Of course, black on black isn't the easiest thing to see.

 

[Rand]

Another Ruger 5.7 target