The following results are from a BRNO CZ 452 2E rifle, installed in a YOUNG RAIL GUN REST.

One box of each ammo is shot.

5, 10-shot groups at 50 yards.

I will post all targets once I am finished.

1. Eley Sport normal factory lube average of 5 groups 0.4602"
lube cleaned off 0.6882"

2. Federal Gold Medal 1.0610
0.8802

3. RWS R 50 0.5574
0.8208

4. RWS Target Rifle 0.5936
0.4776

5. Eley Contact 0.7392
1.1112

Looks like inconsistent results.

Dave

quote:

Originally posted by nopride2:
Looks like inconsistent results.

Dave

True.

But the picture will get clearer once all the results are posted.

quote:

Originally posted by Saeed:
The following results are from a BRNO CZ 452 2E rifle, installed in a YOUNG RAIL GUN REST.

Does temperature extreme cause problems that someone in a four-climate year location will be unlikely to have?

quote:

Originally posted by Naphtali:

quote:

Originally posted by Saeed:
The following results are from a BRNO CZ 452 2E rifle, installed in a YOUNG RAIL GUN REST.

Does temperature extreme cause problems that someone in a four-climate year location will be unlikely to have?

No idea at all.

Re: Temperature problems. Saeed, isn't the tunnel underground, with relatively stable environmental conditions? On other Forums, temperature problems with .22 rimfire target ammo is discussed. The most common problem is extreme cold. That's where the various Biathlon loadings are said to work best. Discussed on a Forum frequented by Canadian shooters and on another Forum for Biathlon competitors.

Re: Lubed vs No Lube. Are you cleaning the barrel between the Lubed and No Lube experiments? Many serious .22 rimfire shooters consider stable distribution of lube in the barrel a prerequisite to good shooting. Common practice is to have at least one shot dedicated to lube distribution for each one inch or 25 mm of barrel length. Only after that do you go for points or group size. If you do not clean the barrel, residual lube may suffice for many shots, thus skewing results.

Eley Club Extra I have 2 cases of the stuff that is really a production overrun from the Tenex line. Production date was 2008. Still shoots pretty accurately.

l was wondering if the bullet shape and alloy had anything to do with some shooting more accurately when de-lubed than others.