Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
Long Range Hunting & Shooting
weather and accuracy
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="257" data-source="post: 344876" data-attributes="member: 22418"><p>Hi, I'm new to this site so, I hope I'm asking this in the right section. So here's the story. I had a bad day at the range, and now i'm trying to figure out what all went wrong. I'm working up a load for 257 weatherby, federal GMM 215 primers, reloader 25 and 117 gr hornady SST... out of five 3 shot groups only 1 was respectable, .94" I know i'm not a great shot, but from a sandbag rest, i expect well under 2" minimum, more like 1 1/4 . the rifle is good for atleast .625, (best so far). it was about 18-22 degrees, kinda hard to tell with 10-20 mph wind in my face blowing snow at me. i think the worst group was about 5 or 6" it was too depressing to really measure. The good group came from 72.3 grs powder the worst was the "middle" load of 70.9 grs. I tried not to shoot when the wind was gusting, but i think a few shots may have been caught. </p><p></p><p>How much of this should i chaulk up to weather? </p><p></p><p>The reason i went out in the cold was to get a good cold weather round for Feb. hunting. It just turned out to be a little worse than i wanted it. What i'd really like to know is, does head or tail wind affect balistics as much as cross wind? And does anybody think i might have the wrong powder for the temperature? The max load didnt show any signs of pressure. I wish i had a chrono, maybe next Christmas. The reloader 25 did well with partions in 40 deg temps. I know different load.</p></blockquote><p></p>
[QUOTE="257, post: 344876, member: 22418"] Hi, I'm new to this site so, I hope I'm asking this in the right section. So here's the story. I had a bad day at the range, and now i'm trying to figure out what all went wrong. I'm working up a load for 257 weatherby, federal GMM 215 primers, reloader 25 and 117 gr hornady SST... out of five 3 shot groups only 1 was respectable, .94" I know i'm not a great shot, but from a sandbag rest, i expect well under 2" minimum, more like 1 1/4 . the rifle is good for atleast .625, (best so far). it was about 18-22 degrees, kinda hard to tell with 10-20 mph wind in my face blowing snow at me. i think the worst group was about 5 or 6" it was too depressing to really measure. The good group came from 72.3 grs powder the worst was the "middle" load of 70.9 grs. I tried not to shoot when the wind was gusting, but i think a few shots may have been caught. How much of this should i chaulk up to weather? The reason i went out in the cold was to get a good cold weather round for Feb. hunting. It just turned out to be a little worse than i wanted it. What i'd really like to know is, does head or tail wind affect balistics as much as cross wind? And does anybody think i might have the wrong powder for the temperature? The max load didnt show any signs of pressure. I wish i had a chrono, maybe next Christmas. The reloader 25 did well with partions in 40 deg temps. I know different load. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
Long Range Hunting & Shooting
weather and accuracy
Top