How do you choose match ammo?
- BlauBear
- Uber Master Poster
- Posts: 2734
- Joined: Fri Jul 07, 2006 10:43 am
- Location: Fort Smith, AR
Re: How do you choose match ammo?
I've learned to store ammunition in a cooler to protect it from heat and cold. Summer heat is worse problem here, of course, but cooler weather also causes change.
"If the America people ever allow private banks to control the issuance of their currencies, first by inflation and then by deflation, the banks and corporations that will grow up around them will deprive the people of all their prosperity" - TJ
- Innocent
- Uber Master Poster
- Posts: 5675
- Joined: Tue Jun 06, 2006 7:28 am
- Location: Merritt Island
Re: How do you choose match ammo?
Jason,
Yes, I have found that heat and cold will change the size of the group from ammo. I can take a brick with me to a match and if it is exposed to extremes in temp along the trip that brick will not group the same as another from the same case lot that has not been exposed to temp extremes. For that reason, like many of the shooters, I tend to insulate the carry case that I have for the ammo, and do my best to see that it is not exposed to extremes in temps.
Mary
Yes, I have found that heat and cold will change the size of the group from ammo. I can take a brick with me to a match and if it is exposed to extremes in temp along the trip that brick will not group the same as another from the same case lot that has not been exposed to temp extremes. For that reason, like many of the shooters, I tend to insulate the carry case that I have for the ammo, and do my best to see that it is not exposed to extremes in temps.
Mary
Proud member of SNOSS. I earned mine!
Proud member of IBDF Club...
Guilty until proven Innocent by the press.
Proud member of IBDF Club...
Guilty until proven Innocent by the press.
- shakes
- AAA Poster
- Posts: 696
- Joined: Wed Jan 17, 2007 10:50 am
- Location: MILTON, WA
Re: How do you choose match ammo?
Just a little off topic but related, does anyone notice a change in poi if they move the front rest to differnt positions on the forearm? I can place the rest towards the front of the forearm and get one poi and if I move the rest further back, say where your support hand would be I get a totally different poi, not that far off from the other but different.
"The bench proves the rifle, standing proves the man" Harry Pope. 6.5's for LIFE
- Innocent
- Uber Master Poster
- Posts: 5675
- Joined: Tue Jun 06, 2006 7:28 am
- Location: Merritt Island
Re: How do you choose match ammo?
Shakes,
If your npa is high, move forehand forward, or lift butt in your shoulder and so on.....so in answer to your question yes the poi is different.
Mary
If your npa is high, move forehand forward, or lift butt in your shoulder and so on.....so in answer to your question yes the poi is different.
Mary
Proud member of SNOSS. I earned mine!
Proud member of IBDF Club...
Guilty until proven Innocent by the press.
Proud member of IBDF Club...
Guilty until proven Innocent by the press.
- Jason
- Uber Master Poster
- Posts: 3002
- Joined: Tue Feb 28, 2006 7:36 pm
- Location: Snohomish, WA
Re: How do you choose match ammo?
I have seen the same thing, Matt. I usually remove the foreend stop from my front rest and try to place it as close as I can back to the triggerguard where my forward hand rests as possible. Be careful, though, the barrel of your rifle will be heavy enough to make the rifle tip forward if you let it go expecting it to just sit in the rests that way.
-
- A Poster
- Posts: 231
- Joined: Sun Jun 28, 2009 5:05 pm
- Location: N.E. PENNSYLVANIA
- Contact:
Re: How do you choose match ammo?
we're going off topic here, but....
it also has to do with the amount of flex and tension being put on the receiver / barrel. the further back you put the rest to the meaty part of the receiver, generally the better the groups. you can see how far back i have the bipod mounted for that reason...
it also has to do with the amount of flex and tension being put on the receiver / barrel. the further back you put the rest to the meaty part of the receiver, generally the better the groups. you can see how far back i have the bipod mounted for that reason...
"a craftsman can't realize his full potential, without finding the potential of the tools he uses...."