Recently, I was at my friendly Class 3 dealer arranging another acquisition when I saw a PS90 on the wall. I knew very little about the rifle, but it felt good in the hand and looked completely different from anything else in my collection, so I bought it, too. Call it an impulse buy if you must…
But imagine my frustration – I had a new toy I knew almost nothing about AND I had to wait nearly a week to get any ammo for the thing.
So, I wound up here (and on that other PS90 forum) to learn about the PS90. Lots of good info in both places – thanks very much, guys!
Let me share some chrono data as a way to return the favor. I had the PS90 with SS197 and a 7.5 inch AR with 45gr Remington hollowpoints and some Hornady 55gr TAP FPD. I used my venerable PACT Mk II chrono and had the first screen about 6 feet in front off the muzzle. Each string was 10 rounds. (MAD = Mean Average Deviation of the string). Here’s the data:
SS197 & PS90
Hi 2129.6
Low 2092.5
Spread 37.1
MAD 9.8
Avg 2109.7
45gr 223 & 7.5” SBR
Hi 2538.8
Low 2400.6
Spread 138.2
MAD 37.4
Avg 2480.6
55gr TAP & 7.5” SBR
Hi 2305.4
Low 2246.5
Spread 58.9
MAD 14.4
Avg 2284.1
Hopefully, this will add something valuable to the common data pool.
Once again - thanks for all the great info and opinion hereabouts!
taudo
in the wilds of Montana
But imagine my frustration – I had a new toy I knew almost nothing about AND I had to wait nearly a week to get any ammo for the thing.
So, I wound up here (and on that other PS90 forum) to learn about the PS90. Lots of good info in both places – thanks very much, guys!
Let me share some chrono data as a way to return the favor. I had the PS90 with SS197 and a 7.5 inch AR with 45gr Remington hollowpoints and some Hornady 55gr TAP FPD. I used my venerable PACT Mk II chrono and had the first screen about 6 feet in front off the muzzle. Each string was 10 rounds. (MAD = Mean Average Deviation of the string). Here’s the data:
SS197 & PS90
Hi 2129.6
Low 2092.5
Spread 37.1
MAD 9.8
Avg 2109.7
45gr 223 & 7.5” SBR
Hi 2538.8
Low 2400.6
Spread 138.2
MAD 37.4
Avg 2480.6
55gr TAP & 7.5” SBR
Hi 2305.4
Low 2246.5
Spread 58.9
MAD 14.4
Avg 2284.1
Hopefully, this will add something valuable to the common data pool.
Once again - thanks for all the great info and opinion hereabouts!
taudo
in the wilds of Montana