22lr half inch at 100y

[stephentri]

Hi looking for new 22lr and came across dolphin rifles website showing some custom 22lr built on cz457 action with accuracy of .5moa at 100y, have any of you got one or shot one, can't find any reviews online
Thanks

 

[8x57]

With the right ammunition it's quite believable. I know my own standard 452 varmint regularly produced groups of less than 1" at 100 yards.

 

[trickie]

We have a club member who has one of these rifles. It shoots very well he has a barrel tuner fitted I think Dolphin provided it. It does shoot sub moa at 100, he is using expensive match ammo, not sure what make. Despite being a very good shooter he can’t achieve that every time. The ammo makes such a difference on a 22lr, as well as ambient temperature.

 

[Smellydog]

My 457 I had shot amazing out the box. I don't think I'd pay extra for one though.

 

[Freeforester]

Hi looking for new 22lr and came across dolphin rifles website showing some custom 22lr built on cz457 action with accuracy of .5moa at 100y, have any of you got one or shot one, can't find any reviews online
Thanks

Have an older 452 BRNO, used to shoot smartie tube tops (showing both my age and sweet tooth, lol) at 100yds with it using Eley HV’s. Consistency of ammunition helps greatly, as does trying in calm, non windy days. I later had the barrel shortened by 5 1/2” by T&C following their own testing of an old rifle (they recommended not cutting off more than 6” or the accuracy suffered) and head shot hundreds of rabbits cleanly out to 80m by use of rangefinder and table of click values at known distances, which worked very well with a Swaro 6/42 Habicht (60 graduations in a whole revolution in the turret). The only other modification I made to it was to stone polish the trigger sear, which greatly improved the let-off pressure.

 

[mealiejimmy]

Hi looking for new 22lr and came across dolphin rifles website showing some custom 22lr built on cz457 action with accuracy of .5moa at 100y, have any of you got one or shot one, can't find any reviews online
Thanks

The accuracy of any 22 is limited by the ammunition you use - and 22 ammo varies wildly
Unless you put the very best stuff through it, you ain't getting 0.5moa, and even then, not all the time

Cheers

Bruce

 

[wildfowler.250]

I don’t think I get that at 50. I’m not entirely sure if I’ve tried enough subs,(Winchester and eley) or if there’s something else going on..

 

[bowji john]

Though I often get better results ..

An honest assessment for mine are

.22LR Cz 452 - 2.5 MOA @ 100m
.22LR R8 - 2.5 MOA
Vudoo - 1.5 MOA

I frequently get far better results and I’m always tempted to ignore the lesser scores

However I’m very confident that fall of shot will stay in the above parameters except for poor wind calls and cock ups

All of the above will perform out to 150m; the Vudoo out past 300m

 

[Klenchblaize]

Try true top end match grade ammo in your current 22lr before committing to a new rifle.

The difference in performance between a box of Lapua Midas and whatever subsonic hunting ammo shoots best in your rifle will be significant. Trust me.

K

 

[badmolassesaccident]

I do a bit of long range rimfire using RWS R100. Have gone up to 600 yards. Once you go past 50 metres/yards, it is very ammo dependent.

I find .5 MoA at 100 yards very difficult to believe. I believe you can get 0.5 on the occasional group, but I don’t believe you can get it consistently. People post their best group, which they got once when the stars aligned, then they claim they can do it “all day long”.

I could show you a <0.5 MoA 100x group with a standard Tikka T1x, but it can’t do it consistently or even often.

Refer Snipers Hide 6x5

Six x five shot groups.

6X5 Thread V5.0 *new 1/1/21*

Hey guys welcome back to the "NEW OLD HIDE", its good to be home! So getting back to business I am starting the 6X5 thread over from scratch. Same rules: Rules are pretty simple. There must be exactly six groups of 5 shots, all on one target board. No more, no less. Every shot on the group...

www.snipershide.com

There are hardly any entries with an an average 100 yard group size of <0.5 MoA. And these results are the average of the groups on the shooters best card which they have submitted for scoring. Not the shooters overall average.

I recommend buying a box of several types of premium match ammo and see what your current rifle can do. Make R100 one of the ones you try. You must test the ammo at 100 metres/yards or more. Ammo which gives you tight groups at short range can fall apart at longer range due to inconsistent muzzle velocity, bullet shape, ballistic coefficient etc.

It will also be very wind dependent. Even a head or tail wind will affect your elevation. A 10 mph crosswind will move your impact 4 inches.

 

[jthyttin]

Last but not least, when testing ammo you should somewhat condition the barrel when changing brands (and even different lines in one brand). Usual explanation for this is bullet wax, and procedure is either clean the barrel or not, thoroughly or not, and fire something like 5 to 50 rounds to condition.

I think a reasonable approach is skip the cleaning or at most put a few patches through the bore. Then shoot a box of 50 in 5 round groups keeping track. Compare first 5 groups to last 5 groups to see if there's difference. And you can always combine the groups to make synthetic higher round count groups.

Regarding SS HP, my experience is that most times you can find a brand that shoots acceptably at 50m. But at 100m there's always one or two fliers in 10 round group, usually they're 5 or even 10cm lower than rest of group. Velocity might not be so much different (if you record it) so there might be other problems also, like base of the bullet disturbed while seating (at the factory).

 

[Klenchblaize]

Another thread that has nicely demonstrated the key limiting factor of 22lr group size and consistency of such is the ammunition one is able to procure for a given rifle.

Not surprising when you consider the accepted benefits of home loading centre-fire ammunition but for the most part overlooked by 22lr bunny bashers.

K

 

[wildfowler.250]

I’ve always genuinely wondered to what range a .22lr is considered acceptable for head shooting rabbits with subs. Not saying energy but consistently putting the bullet in the correct spot. 70 yards? 100 yards?

I far rather the HMR and it feels like a laser compared to the .22 . I mainly use the .22 for sit and wait shooting now at a fixed distance but interested to hear what folk think.

 

[badmolassesaccident]

I’ve always genuinely wondered to what range a .22lr is considered acceptable for head shooting rabbits with subs. Not saying energy but consistently putting the bullet in the correct spot. 70 yards? 100 yards?

I far rather the HMR and it feels like a laser compared to the .22 . I mainly use the .22 for sit and wait shooting now at a fixed distance but interested to hear what folk think.

I’d say less. Although you could reliably hit a rabbit head size target on a range at 100m or more, in the field you probably won’t know your distance to target particularly accurately. You will need about 2 millirad of elevation going from 50m to 100m, so a small error in distance to target and you will miss on the vertical. That’s before you add in the additional windage error.

The answer is a .308

 

[BigFrank]

I use Eley subsonic in my CZ 455….it performs exactly as per the chart . Zero at 52yds. It’s a great round. If more than 75yds I go to .22wmr or .17hmr.

 

[badmolassesaccident]

I had a look at the Dolphin website. Their rifles should be quite accurate due to having a heavy barrel in a rigid metal chassis. This is the type of rifle that gets the better groups on the Snipers Hide 6 x 5 postal/online competition.

Just don’t buy one and expect to shoot 0.5 MoA all day long.

 

[HonestJohn]

I shoot 40g fiocchi from my 1940's BRNO 22lr, they will easily group 1/4" MOA at 50yds, more often than not if I do my part, you cannot tell it's more than 1 hole!.

at 100yds on a day with no wind and sandbags, 1/2" to 1/4" is a breeze with reliable ammo. they can do this for up to around 500 rounds in a sitting (I have two identicals)

absolutely no need for any fancy 22LR builds for accuracy, just buy an old Brno!

 

[badmolassesaccident]

^ Mmm, getting a consistent quarter MoA would beat almost every centerfire rifle and put you at the top of the 6 x 5 rimfire league, beating people using heavy rifles with match rimfire ammo.

 

[HonestJohn]

^ Mmm, getting a consistent quarter MoA would beat almost every centerfire rifle and put you at the top of the 6 x 5 rimfire league, beating people using heavy rifles with match rimfire ammo.

do it in my back garden every week, really not an issue. think many others probably do too..but I, and them, probably can't be bothered entering any p1ssing competitions..just happy to shoot some paper in the garden kinda guy..don't need the fame

 

[badmolassesaccident]

The 10-ring (ie inner ring) on the 50 metre target in the Olympics is 10.4mm diameter, or about 0.4 inch…..