TargetTalk

Last year at Camp Perry, the most asked question about the Aguila 22 LR Super Extra Standard Velocity Ammunition was about the Velocity. I only had the factory info which stated 1200 fps. I had been told by an Aguila Rep that the 1200 fps was the result of a test in a rifle test barrel. So, I decided for this year I would have it tested by a local Ammunition Manufacturer. He used one of our "X-Series" Victor Pistols with a 5 1/2" Barrel. The Muzzle Velocity average of 10rds was approx 1000 fps. - Alan Aronstein

Nice work!

Your testing indicates that one might use higher velocity ammo than Standard for target use.
I found this out while using CCI Blazer instead of SV during a .22 crunch. Cheap, too!

SAAMI considers 22 LR Standard Velocity Ammunition to be 1200 fps or LESS. I am NOT trying to say ALL Ammunition would have the Same result as the Aguila SE/SV. For example CCI SV publishes 1070 fps, I assume that is in a Test Barrel(Rifle-?). Based on the powder being a similar burn rate, I would guess that CCI would be 950 fps from a 5 1/2" Victor Barrel. I think that 22 LR Blazer lists 1335 fps and that is going give a higher fps. ALL of the factories use their own powder blends(burn Rate). This could also cause variations in fps in a 5 1/2" Barrel with the same 40gr lead bullet. I will try to have some more testing done after I return from Camp Perry.- Alan Aronstein

Rover wrote: ↑Sat Jun 03, 2023 6:32 am Nice work!

Your testing indicates that one might use higher velocity ammo than Standard for target use.
I found this out while using CCI Blazer instead of SV during a .22 crunch. Cheap, too!

Rover,

Velocity is one thing to consider when selecting target ammunition. What about a given cartridge's operating pressure?

I'm no ballistics expert. But, wouldn't the use of some brands of high velocity ammunition be hard on a target pistol?

As I understand it, the velocity of bullets inside a barrel is proportional to the fourth root of the barrel length, Consequently, 1200 fps from a 26" barrel corresponds quite well to about 1000 fps from a 5.5" barrel.

Real World ammo test, Walther GSP500 barrel 123mm (4 7/8")
testing for rapidfire min 250 m/s
Gecco Semi Auto 293 m/s, 961 fps
CCI Std Vel 284 m/s, 961 fps
SK Std + 257 m/s, 843 fps
SK Pistol Match 251 m/s, 823 fps