The Original CZ Forum

GENERAL => Ammunition, questions, and handloading techniques => Topic started by: Alamo_308 on July 18, 2022, 02:05:25 PM

Title: CZ 457 22LR Ammo Tests
Post by: Alamo_308 on July 18, 2022, 02:05:25 PM
Still not settled on what .22LR ammo my unmodified factory-spec VPT MTR prefers, but had some fun the other day testing four very different examples. If only for that one HUGE flyer with the norma TAC-22 (as the cartridge name TAC-22 indicates, this is .22 ammunition, as are all the others) that would be the clear winner; next is the Eley Tenex Biathlon. What's amazing is that the norma is absolutely the lowest priced of all those ammos. But then, it also had the worst flyer, and there really wasn't that much wind at the time.
Time for more testing...
 
(https://hosting.photobucket.com/images/rr195/beeker77/2022-07-02_Pratice-target_4-ammos_5-rounds-each_cleaned_annotated.jpg)
Title: Re: CZ 457 Ammo Tests
Post by: lewmed on July 22, 2022, 10:03:49 PM
 My CZ 457 MTR likes SK standard and Wolf Match Extra the Wolf has a little more report and hits about 1/4" higher than the SK at 75 yards.
Title: Re: CZ 457 Ammo Tests
Post by: Alamo_308 on July 23, 2022, 12:28:21 AM
My CZ 457 MTR likes SK standard and Wolf Match Extra the Wolf has a little more report and hits about 1/4" higher than the SK at 75 yards.

SK Standard is on my list to try.
My 457 does only okay with Wolf Match Extra. Maybe good enough to try in a club match next month?
(https://hosting.photobucket.com/images/rr195/beeker77/2022-07-02_CZ-USA_457_VPT-MTR_Barska-scope_50yards_Wolf-Match-Extra.jpg)
Title: Re: CZ 457 22LR Ammo Tests
Post by: Wobbly on July 23, 2022, 01:29:53 PM
I've owned 5 or 6 Anschutz competition rifles and they all liked different ammo. While all gave good results, no 2 "liked" the same ammo.

(https://i.imgur.com/9f8HtTzm.jpg?1)

One thing that needs to be watched when testing ammo is the barrel waxing. I found my results were closer to actual if 10 shots were fired into the dirt before moving over to shoot "for record" on a target. Each brand seems to have a proprietary bullet wax/coating that transfers to the barrel. IMHO, 22LR ammo comparisons need to account for that.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Alamo_308 on July 23, 2022, 02:45:01 PM
One thing that needs to be watched when testing ammo is the barrel waxing. I found my results were closer to actual if 10 shots were fired into the dirt before moving over to shoot "for record" on a target. Each brand seems to have a proprietary bullet wax/coating that transfers to the barrel. IMHO, 22LR ammo comparisons need to account for that.

Yep, in fact I have several boxes labeled "Foulers" that I use for that exact same purpose, between tested ammos and before sighters at a match.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Harrell2Xtap on July 31, 2022, 11:16:31 AM
Mine loves CCI green tag and CCI standard velocity for the cheap rounds. For higher end  SK rifle match and Wolf match extra and target for sure. Lapua Midas and Center X is real good if your just wanting to spend some money and can get all the same batch.
Title: Re: CZ 457 22LR Ammo Tests
Post by: BarkingAnt on August 01, 2022, 10:42:27 AM
I just got a 457 American and shot several brands of ammo this weekend to find what works best. Eley Tenex was sure winner and generally my rifle liked standard velocity the best with one exception. Federal Champion 40 gr round nose, their part number 510, seems to have promise in my rifle. Has anybody had similar experience with that ammo?

I tried CCI Mini Mag, Aguila Supermaximum both of which made significantly more open groups than standard velocity ammo. CCI Green Tag was respectable but Eley Tenex and Match were remarkable.

BTW, barrel waxing is an interesting idea, gonna do that next range time. I've had two 22LR rifles (one's a Kimber 82 circa 1986 :o) for more than 40 years and never thought much about shooting rimfire for accuracy and distance shooting. Always thought squirrels and varmints within 50 yards. After this weekend, I think I'm hooked.

Title: Re: CZ 457 22LR Ammo Tests
Post by: Alamo_308 on August 01, 2022, 12:09:41 PM
BTW, barrel waxing is an interesting idea, gonna do that next range time. I've had two 22LR rifles (one's a Kimber 82 circa 1986 :o) for more than 40 years and never thought much about shooting rimfire for accuracy and distance shooting. Always thought squirrels and varmints within 50 yards. After this weekend, I think I'm hooked.
I kinow the feeling; been hooked three times: Kimber 82G, Vudoo V22S, and CZ457.
I shot my Kimber 82 1987 in rimfire accuracy events for many years before getting my Vudoo (two years ago) and 457 recently. The Kimber did surprisingly well against supposed 'target' rifles, until somebody brought a Vudoo to a match. That got me into the higher level of rifles, including the very recent 457 (just six months now).
(https://hosting.photobucket.com/images/rr195/beeker77/2020-08-19_50yards_Aguila-40gr_Caldwell-Bipod_annotated.jpg)
Title: Re: CZ 457 22LR Ammo Tests
Post by: skin on August 01, 2022, 07:46:02 PM
 If you can find them, sk long range match works really well in all of my 22 rifles.
Title: Re: CZ 457 22LR Ammo Tests
Post by: BarkingAnt on August 03, 2022, 09:42:12 AM
If you can find them, sk long range match works really well in all of my 22 rifles.

Found some SK Rifle Match at Midway USA, thanks. Somewhat slower muzzle velocity but going to try it.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Buzzbait3 on November 06, 2022, 03:33:22 PM
My MTR loves SK Long Range Match ammo. It's a little cheaper than the Lapua Center X, which is the other favorite.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Wobbly on November 06, 2022, 04:38:42 PM
Found some SK Rifle Match at Midway USA, thanks. Somewhat slower muzzle velocity but going to try it.

Yes, true "match .22" is down around 1020 to 1040 fps. You're sure not going to kill any squirrels with it !
Title: Re: CZ 457 22LR Ammo Tests
Post by: BarkingAnt on November 06, 2022, 04:46:54 PM
My MTR loves SK Long Range Match ammo. It's a little cheaper than the Lapua Center X, which is the other favorite.

I just finished putting a Lilja .900 taper barrel on a 457 action and MDT chassis with a Timney trigger.. I went to range Friday and shot it first time testing several brands of ammo. I didn't do any exhaustive tests just 5 five shot groups of each ammo that I tried.

Lapua X-Act, Center-X, Midas+ and SK Rifle Match were in the test. In my rifle X-Act and SK Rifle Match produced the smallest groups. A little surprising in that X-Act sells for nearly $30/box and SK Rifle for $12-13. SK Rifle was real close to X-Act group size. Midas+ was next smallest followed by Center-X. Eley Tenex also did well but not as good as X-Act or SK Rifle Match.

That was first test of new barrel but I plan to do more testing. It does seem that SK Rifle Match does well in any rifle I put it in. But who knows that was the first 150 to 200 rounds in a new barrel.

BTW, someone told me Lapua Pistol King and Center-X were same ammo just Pistol King is in a different box. Judging by my experience Friday I don't think so.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Wobbly on November 06, 2022, 05:54:56 PM
Lapua X-Act, Center-X, Midas+ and SK Rifle Match were in the test. In my rifle X-Act and SK Rifle Match produced the smallest groups. A little surprising in that X-Act sells for nearly $30/box and SK Rifle for $12-13. SK Rifle was real close to X-Act group size. Midas+ was next smallest followed by Center-X. Eley Tenex also did well but not as good as X-Act or SK Rifle Match.

Back when I was coaching youth, I couldn't afford for them to shoot all day with the $30/box stuff. After hearing about the bullet wax, I started coating my own at home. I used Federal Auto-Pistol in the bulk container (which shoots pretty good) and dipped just the bullet in some real high-end bullet lube. The results were amazing.

Here's a first-timer shooting with the Auto-Match...
(https://i.imgur.com/EN9iPV2m.jpg)

Here we are inspecting the 50ft target...
(https://i.imgur.com/Yjx2qYzm.jpg)

Here's her target. Never touched a gun before in her life...
(https://i.imgur.com/owcSA3Mm.jpg)

There is an orange 3/4" dia sticker on the RH side of the target board in the background of Photo #2. That's at ~75 feet shooting across range. I asked her to setup and take 3 shots on the orange dot. No practice; 3 shots only...
(https://i.imgur.com/t5T7x7Wm.jpg)

 :o
Title: Re: CZ 457 22LR Ammo Tests
Post by: BarkingAnt on November 06, 2022, 07:27:36 PM

Back when I was coaching youth, I couldn't afford for them to shoot all day with the $30/box stuff. After hearing about the bullet wax, I started coating my own at home. I used Federal Auto-Pistol in the bulk container (which shoots pretty good) and dipped just the bullet in some real high-end bullet lube. The results were amazing.


I like that young people are learning and enjoying precision 22lr. She shot well.
On other thought, all you did was dip bulk ammo in bullet lube? Lordy! I used Lapua X-Act in a match recently, hate to think all I had to do was dip thunderbolt in wax! ;)
Title: Re: CZ 457 22LR Ammo Tests
Post by: Wobbly on November 07, 2022, 05:01:06 AM
On other thought, all you did was dip bulk ammo in bullet lube? Lordy! I used Lapua X-Act in a match recently, hate to think all I had to do was dip thunderbolt in wax! ;)

Yes, I stacked the bulk rounds into discarded 50-round open-bottom plastic organizers. Then I had a puddle of an Alox-type lead bullet lube and was able to dip 50 rounds at a time. I let them sit (in the same organizer) for a day or 2 to dry. That was all.
Title: Re: CZ 457 22LR Ammo Tests
Post by: mauserand9mm on November 11, 2022, 03:55:31 AM
I recently discovered that I had a brick of really old Tenex - maybe 15/20 years old? (I'd won it and had put it aside for special purposes one day.) The lube had solidified and some of it had cracked and fallen off inside the boxes. Still shot good though.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Wobbly on November 11, 2022, 08:26:18 AM
The lube has a "persistence". Once the barrel is coated it takes very little to maintain the coating. Which is why, when testing multiple brands, you want to fire 5 or 6 rounds into the dirt before you start your comparison testing.
Title: Re: CZ 457 22LR Ammo Tests
Post by: 357MAGNOLE on November 11, 2022, 01:19:52 PM
I got a stockpile of Eley Sport about 6 years ago.  My 455 Varmit Evolution shoots it sub-moa at 100 yards and can keep it within 1/3" at 50.  I will literally never need better accuracy than that. When it did that well, I went and bought every box on the shelf. I think I have 1500 rounds of it.  I usually just shoot federal champion or target match ammo from Federal.  Either gives me good results for much cheaper but I saved the good stuff for when I need to make small groups.
Title: Re: CZ 457 22LR Ammo Tests
Post by: crows on November 19, 2022, 10:36:53 PM
Good to hear that others like the TAC-22, my CZ loves it. I have read on other forums where people are insisting it is too dirty.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Born2vette on November 19, 2022, 10:45:28 PM
My 457 MTR Varmint does not like Tac-22 at all. Kimd of meh with Center-X or Midas +. Best consistent groups have been with SK Rifle Match. YMMV
Title: Re: CZ 457 22LR Ammo Tests
Post by: Fyrfyter on November 26, 2022, 06:15:54 PM
I still haven't found the "right" round for my 457.
Title: Re: CZ 457 22LR Ammo Tests
Post by: Cinimod on December 19, 2022, 10:12:04 AM
It is my understanding that the fouling rounds form a combustion ring in the chamber which forms an entrance to the rifling in the barrel. This combustion ring guides the head of the bullet into the center of the rifling.
Title: Re: CZ 457 22LR Ammo Tests
Post by: 357MAGNOLE on December 31, 2022, 08:58:42 AM
Found some SK Rifle Match at Midway USA, thanks. Somewhat slower muzzle velocity but going to try it.

Yes, true "match .22" is down around 1020 to 1040 fps. You're sure not going to kill any squirrels with it !

Not sure if you are just joking cause the speeds or not. But I have killed literally hundreds of squirrels with CCI Quiet and it's traveling at 710 FPS.

Granted I only do head shots but I see probably 90% clear pass throughs on any shot with it.