100 yard ten shot groups

[grauhanen]

This morning I had with me at the range a new rifle I've had for about two weeks. It was calm and cool at minus 2.5 deg. Celsius (or 27.5 F). When I finished the tenth group it was minus 2.1 deg. Celsius (28.2 F).

The ten consecutive ten-shot groups at 100 shown below were all under one inch and averaged just under .700". That was pleasant surprise. The very calm conditions seem more plentiful than the two consistent boxes of Midas I used.

The rifle is an Anschutz 54.30 with a SS barrel. It is shown below as it was this morning.

 

[ELR LVR]

Dang nice rifle!!! What a score

 

[houligan]

Very, very, nice!

 

[68Hoyt]

Nice rifle and shooting , I want a stock like that , I did not get one of Parmoores stocks when they were available

 

[grauhanen]

Thanks for the kind words.

I have a 1907 barreled action in a Parmoor stock. I had it at the range today.

 

[Topwater]

Nice shoot’n I’d be tickled with those groups. Well done !

 

[Ccrider]

Great shooting. Nice rifle and setup. Almost looks like it will shoot itself.

 

[shoot4fun]

This morning I had with me at the range a new rifle I've had for about two weeks. It was calm and cool at minus 2.5 deg. Celsius (or 27.5 F). When I finished the tenth group it was minus 2.1 deg. Celsius (28.2 F).

The ten consecutive ten-shot groups at 100 shown below were all under one inch and averaged just under .700". That was pleasant surprise. The very calm conditions seem more plentiful than the two consistent boxes of Midas I used.

The rifle is an Anschutz 54.30 with a SS barrel. It is shown below as it was this morning.

I see your Garmin and it got me wondering about velocity differences between warmer summer weather (if there is any in Ontario) and a chilly day. not only how much velocity changed but how it had effect on ES and SD.
Annies are certainly top notch rifles. I own two 1727F rifles and both are great shooters.

 

[grauhanen]

I see your Garmin and it got me wondering about velocity differences between warmer summer weather (if there is any in Ontario) and a chilly day. not only how much velocity changed but how it had effect on ES and SD.
Annies are certainly top notch rifles. I own two 1727F rifles and both are great shooters.

In the summer it can get quite warm, especially in the afternoons. I shoot in the mornings when the likelihood of calm conditions are usually best. Even then temps are often in the 70's F before noon. At this time of year temps are often near or below freezing when I begin at the range.

When it's warmer .22LR ammo has faster muzzle velocities, slower when it's cooler. To illustrate with an example, today with an Anschutz 1907 I shot an ammo when it was about 23 deg. F. I shot the same lot with this rifle in July when temps were 70 deg. F. The average MV was, respectively 1050 fps and 1076 fps.

Even small temps differences can cause a small difference in MV. In the morning as it slowly warms a second consecutive box of ammo will invariably have a slightly faster MV.

There's no way to know if temperature changes actually affects ES and SD. Why? Even with a grade of ammo such as Lapua Midas there's no guarantee that any two boxes from the same brick will have identical ES and SD figures -- even if shot at the same temps. Lots usually don't have uniformly similar ES and SD values from one box of ammo to the next.

Except for fouling shots, I chronograph all the ammo I shoot. I haven't seen any unusual differences in ES and SD between ammos shot when it's warmer or when it's cooler. In other words, I suspect that ES and SD are not affected significantly, if at all, by the temperature differences I experience.

 

[jsdkms]

VERY VERY NICE!

 

[stacy]

Awesome Shooting

 

[jds holler]

Pretty good testimonial for that ammo also. jd

 

[MUP]

That is some exceptional shooting!