Re: 22 caliber ballistics
Posted: Sun May 03, 2020 4:45 pm
Been up at the property all week and just got home. Turkey season opened on Friday so I hunted a few days. Temps were in the 70s the last couple days and the bugs came out in force. It was uncomfortable hunting in warm weather with swarming gnats and mosquitoes.
I had some of the 22 ammo I tested the pistols with me and my Ar7 rifle under the back seat of my truck. I decided to get a jump on testing some out of rifle barrels since I had the Ar7 handy. It has a 16" bbl.
So at lunch on Saturday I took out the crony and tested them . 7 were HV 40 gr solids, 5 were 36 gr HVHPs. 2 were standard velocity solids.
Test was a average of 5 shots @ 10 feet. Temp was 70 F.
The 40 gr "high velocity" averaged 1156 FPS with the highest being Remington thunderbolt @ 1208. The 40s averaged 1150 out of the 10" but it was 40F colder when I shot them. Only a difference of 6 FPS.
The 36gr "high velocity" averaged 1199 with the highest being Federal bulk packed @ 1241. 36s averaged 1100 out of the 10". So that's a gain of 99 FPS in 6".
The standard velocity averaged 1060, highest being Aguila Eagle target @ 1086. The other one was CCI Standard @ 1032.
I also ran some Stingers through it. They averaged 1482 the highest being 1496, the lowest 1460. That's in contrast to the 1340 they averaged out of the 10" barrel. So I gained 142 FPS in 6".
I have rifles in 22lr with 16, 18, 19, 20, 24, and one with a 26" bbl. I'm going back to the cabin on Tuesday or Wednesday next week. I'll try and bring them and test them.
I had some of the 22 ammo I tested the pistols with me and my Ar7 rifle under the back seat of my truck. I decided to get a jump on testing some out of rifle barrels since I had the Ar7 handy. It has a 16" bbl.
So at lunch on Saturday I took out the crony and tested them . 7 were HV 40 gr solids, 5 were 36 gr HVHPs. 2 were standard velocity solids.
Test was a average of 5 shots @ 10 feet. Temp was 70 F.
The 40 gr "high velocity" averaged 1156 FPS with the highest being Remington thunderbolt @ 1208. The 40s averaged 1150 out of the 10" but it was 40F colder when I shot them. Only a difference of 6 FPS.
The 36gr "high velocity" averaged 1199 with the highest being Federal bulk packed @ 1241. 36s averaged 1100 out of the 10". So that's a gain of 99 FPS in 6".
The standard velocity averaged 1060, highest being Aguila Eagle target @ 1086. The other one was CCI Standard @ 1032.
I also ran some Stingers through it. They averaged 1482 the highest being 1496, the lowest 1460. That's in contrast to the 1340 they averaged out of the 10" barrel. So I gained 142 FPS in 6".
I have rifles in 22lr with 16, 18, 19, 20, 24, and one with a 26" bbl. I'm going back to the cabin on Tuesday or Wednesday next week. I'll try and bring them and test them.