.22Lr amo and the importance on testing what works for you. In your rifle.

[JTO]

I had some issue with subsonic ammo and it was dropping way lower than it should at 75 yards given the factory stated fps so i got two rifles, an old brno with a 24'' barrel and a cz455 with a 16 inch barrel. I picked 3 varieties of subsonic ammo, eley subsonic 1065fps, winchester subsonic 1065, cci subsonic 1050. I hooked up the magnetospeed and got cracking. I tried the eley first and got an average of 970fps 20es out of the brno and 910fps and 22es out of the cz. The winchester got and average of 1060fps and 170es out of the brno which led to some of the bullets going supersonic and cracking, with the cz i got 990fps and 45es. Lastly i tried the cci through the brno and got 1030fps and 25es, with the cz is got 980fps with a 25es. so the only ones that actually reached the factory stated speeds were the winchester through a 24 inch barrel but every 3rd or 4th round went supersonic and cracked!! the most accurate was the eley but then it was 100-150 below factory stated velocities.

This just about confirms what I was thinking, but without using the Chrony, in my 24" BSA Supersport V.

 

[Cyres]

My son and his mate were out doing serious plinking over the weekend both have Annies,

Eley subs or Magtechs are normal very good however a new batch of eley subs wouldn't group bellow 30mm at 75yds whilst an old batch of eley subs shot 10 in the size of a 1p piece.

I noticed similar problems so god knows whats happening with the QC of Eley .22lr sub ammo at present.

D

 

[Klenchblaize]

More than one person on here has questioned the importance of quality 22lr ammunition in a sporter weight rimfire so I set out today to prove a point and with several witnesses if required.

After firing 5 shots into the backstop to rule-out any cold/clean bore influence I shot a 10-shot group using RWS subsonic at exactly 50 yards from a Cooper Jackson Squirrel Rifle. I then shot a further 10-shot group using Lapua Midas. To further rule-out any luck another Lapua M 10-shot group was fired and this is the result:




You be the judge.

K

 

[Muir]

More than one person on here has questioned the importance of quality 22lr ammunition in a sporter weight rimfire so I set out today to prove a point and with several witnesses if required.

After firing 5 shots into the backstop to rule-out any cold/clean bore influence I shot a 10-shot group using RWS subsonic at exactly 50 yards from a Cooper Jackson Squirrel Rifle. I then shot a further 10-shot group using Lapua Midas. To further rule-out any luck another Lapua M 10-shot group was fired and this is the result:


View attachment 86006

You be the judge.

K

Aren't you stating the obvious here? What is basically a hunting round against a top grade Match round? At almost 4 times the cost per box (here) I would darned well expect the Midas to out shoot the RWS. Good shooting, btw.~Muir

PS: It does bother me that the RWS shot so badly at 50M. I'm not sure your five fouling rounds were enough seeing how the groups got progressively tighter as you shot. Did you happen to then shoot the RWS afterwards to rule out the first grouping performance as being clean barrel influenced?

 

[Klenchblaize]

Aren't you stating the obvious here? What is basically a hunting round against a top grade Match round? At almost 4 times the cost per box (here) I would darned well expect the Midas to out shoot the RWS. Good shooting, btw.~Muir

PS: It does bother me that the RWS shot so badly at 50M. I'm not sure your five fouling rounds were enough seeing how the groups got progressively tighter as you shot. Did you happen to then shoot the RWS afterwards to rule out the first grouping performance as being clean barrel influenced?

EXACTLY my point but not accepted buy some!

I could have been fibbing and shot the RWS after the first Lapua string!

The only point I'm trying to make is accuracy in a 22LR is governed (largely) by the consistency of ammo used.

K
Ps: The RWS target is up-side-down as I was without reading glasses when scrawling details. Ditto the the first Lapua.

 

[Muir]

EXACTLY my point but not accepted buy some!

I could have been fibbing and shot the RWS after the first Lapua string!

The only point I'm trying to make is accuracy in a 22LR is governed (largely) by the consistency of ammo used.

K

I see and agree with you. The was such a disparity between ammunition quality that I got a little bewildered.~Muir

 

[Silverfoxfintry]

Interesting post.
By coincidence, on Sunday I was on my ground testing a new load for my .270W. I also took my Winchester
lever action .22lr as I had 20 rounds of RWS left from a batch I bought A couple of years ago.
At 50m the RWS group was around 150mm.
However with a box of Eley Subsonic I managed a group under25mm.
Also the mean point of impact was nearly 75mm higher.
One other point. When loading the tubular magazine I was able to load 15 RWS, but only 14 Eley.
Quite a difference in OAL.

 

[User00033]

A week or so before this thread started I asked about dirty .22LR ammo. I was getting a lot of crud from CCI Stinger in both the Ruger 10/22 and Remington 597. I thought this was causing a sudden decline in accuracy. What I hadn't considered was the change from one 500 round brick to another.

This thread got me thinking - and a couple of others too - comments about Stingers not being accurate in semi-autos. I persevered with Stingers through the winter - at paper - looking for problems with the scope, rifle, etc.... no joy.... all over the place. Then it clicked - the new brick. I googled this and found similar experiences from one consignment to another, one is spot on accurate, the next, sh>te.

I switched to CCI MiniMags today - a drop of 400fps and increase of 4gr pill weight - and set up in the front garden at 50m. Bullseye, only one flier in 10, probably me, 1.5" circle accuracy. Took the scope off, ditched the quick release rings, stripped the rifle, cleaned everything except the barrel, and used new Warne steel rings torqued to the correct ft-lbs.... set up again... 0.8" circle 5 shot group. It's a standard, 20yr old 10/22, so not too bad... Put the data into Strelock+ and went rabbiting.

Range estimation is really hard for me at close range - the difference between 50m flat and 70m downhill in poor light is tough to judge accurately, so I took the rangefinder and sat in the bushes and waited for the bunnies to come out. Accurately ranging the targets made all the difference - 8 shots for 7 bunnies between 42 and 87m - the one I missed was a bit hopeful but will get him next time...

The #1 lesson has been the massive difference in quality between 500 round bricks... for CCI it's pretty disappointing. The first brick of Stingers was incredibly accurate at 75m with both .22LR rifles, the whole family remembers the day we all shot supertight groups high up in the Kawekas... we thought, Olympics next! The second brick was appalling and I thought it was the rifles or scopes. #2 lesson has been dropping the velocity and increasing the weight, there's still some velocity variation as evidenced in the ~1" vertical stings at 50m, but its way better than scattergun...

Spring is here and the rabbits are already 7 down, not a bad result out of one paddock on a Sunday evening. Some great advice on this forum, has certainly worked for me.

View attachment 87188

 

[Richard Parsons]

Amen..

Exactly. 1.5" high at 100yds my arse....

 

[User00033]

Exactly. 1.5" high at 100yds my arse....

Eh? Sorry, don't follow.