Jump to content
AirGunForum
  • Announcements

    • DaveL

      VCR Bill

      Since the introduction of the "latest" VCR bill on 1st October 2007, sales of AIRGUNS (including replicas) AND MAJOR COMPONENTS (barrels, cylinders etc.) by DEALERS is restricted to a face-to-face transaction.   Please ensure you are familiar with the changes brought about due to the VCR act, which may be viewed on the BASC website.   BASC and ACPO have produced a guide to the VCR act in PDF format, which avoids legalese and is very understandable. See HERE.   AirGunForum members must ensure their transactions conform with current legislation before posting.   An inter-dealer network to facilitate the continuation of mail order business is being established by Portland Jon. Details are HERE or direct to his website HERE.
    • AirGunForum

      Editing your posts

      The forum's EDIT function has been changed. After making your post, you will have 30 minutes to review and edit it. After that, only Admin will be able to make edits.   Should a post NEED to be edited afterwards, email to admin@airgunforum.net the change details, the URL of the thread it applies to and if appropriate, the reason for the change. Don't forget to identify yourself and do use your registered email address to make contact. All this is necessary, as admin must be able to identify who you are and that it is your post that you wish to edit.   Admin. will make the edit if it appears necessary. Note, if you want to change something that could easily be achieved by adding a further post to the thread, you will be expected to do it.   Forum staff generally view new posts added to threads since their last visit. If a "for sale" item has been sold or a wanted item has been obtained, just add a post to the thread and it will usually be noted and the thread title will be edited appropriately. This saves members' time wading through posts that are effectively "dead".   DaveL
    • J-B

      Upgrade   01/16/2018

      Well it took me longer than expected and it was a bumpy road, but the forum is now upgraded to the latest version. The previous skin will no longer work with this new version, but I will check to see if there is a similar one for this version. Enjoy and if you encounter any problem just report it.
Sign in to follow this  
john79

shooting in the cold with a pcp!

Recommended Posts

Just out of interest how many fps does your pcp drop when shooting in cold conditions? and which pcp ?

 

do you adjust your hammer to bring it back up or adjust your scope to compensate ?

 

honest answers please none of this mine is stable -10 deg's to + 40 deg's I keep hearing

 

john.

Share this post


Link to post
Share on other sites

All of my rifles will go plus or minus 30 FPS . depending on whether it is summer or winter . cept the GC2 which works on a different system , . that will change 10 FPS summer to winter . i check and set up the rifle after checking the weather forecast for sunday . to keep it as near to 780 FPS as i can get ??? HOLLY

Share this post


Link to post
Share on other sites

My Ripley does not seem to change much Summer to Winter. John Ostler replaced the o rings with ones that work over a wider temp range when it was serviced some years ago.

 

The only thing I do notice in cold weather, such as near freezing, the shots go low after 35yds so have a dial mark for that which is about 4-6 clicks more.

Share this post


Link to post
Share on other sites

My Pro Target used to have to be adjusted for winter and summer without fail. I used to adjust it via the hammer. Then one day Big Paul at my club said to adjust by the venturi screw in the side. He did it for me,set it at about 780 and now its more stable from winter to summer. It does move a little bit not enough to re adjust every season

Share this post


Link to post
Share on other sites

My 2002 stays within 10 FPS any temp but all you ever here is there is no chrono that works any way but this always seems to come up when people are found to be over. How people us rifle which go 2 inches low when it gets cold I have no idea.

Share this post


Link to post
Share on other sites

My 2002 stays within 10 FPS any temp but all you ever here is there is no chrono that works any way but this always seems to come up when people are found to be over. How people us rifle which go 2 inches low when it gets cold I have no idea.

You aim 2 inches higher

Share this post


Link to post
Share on other sites

There we go keith . Straight from the horses mouth ??? HOLLY

 

PS come to think of it , the resemblance is def there with dave .

Share this post


Link to post
Share on other sites

I don’t think my 9015 changes in temperature. Last year my March seemed to switch at 7 degrees but for some reason this year it doesn’t. ?

Share this post


Link to post
Share on other sites

That seems to be the norm with the March. Everyone I know that has one says the same,it switches like a light and very predictable so no probs

Share this post


Link to post
Share on other sites

From very hot to very cold . it must change ??? HOLLY

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×