Velocity increase in new barrels

[mikecr]

lloyddx2 are you suggesting that barrels die due to dimensional changes to the ENTIRE barrel?
And what would cause this? How would it manifest?

 

[Bart B.]

Almost nobody shoots Sierra bullets in BR, they are not accurate enough.

What's the size of the biggest single group in each of the 1000 yard several group record aggregates? 5" to 6" or 7" .... whatever.

 

[dkhunt14]

What's the size of the biggest single group in each of the 1000 yard several group record aggregates? 5" to 6" or 7" .... whatever.

It's not about the records, but what wins relays, day in and day out. In the last few years the competition tightened up immensely. Now, a couple of thousandths sends you home, no shootoffs. Even the aggs tightened up. My buddy last year, lost the 10 match agg by .0012.

Lots of things changed in the last 8 years. Things that were dominate and big on numbers have disappeared. Sierra used to have a lot of shooters using them. Now it's seems to be Berger or customs. Cartridges like the 300 WIN MAG, 308 Baer and 6.5x284 used to be the big percentage of guns on the line. Now they hardly ever show up. The Dasher, 6.5x47 and 300 WSM pretty much dominate the cartridges being used. Matt

 

[Bart B.]

It's not about the records, but what wins relays, day in and day out.

I know that. I didn't ask about that.

I want to know what the biggest groups are in aggregate records. They best represent the extreme spread the stuff shot. All the other aggs that same stuff shot was bigger.

 

[dkhunt14]

I know that. I didn't ask about that.

I want to know what the biggest groups are in aggregate records. They best represent the extreme spread the stuff shot. All the other aggs that same stuff shot was bigger.

Aggs are depending on conditions. Not what the guns are Capable of. They are shot on that particular day and in 6 or 10 matches, there will always be bad days.

It is how tight the aggs are. I was the first to shoot a 6 match agg below 6 inches. Did It in 2005 and now 8 to 10 guys do it every year at our range. It is just that much tighter and the competition closer. You need to shoot what wins. Our range is also very windy and new guys there always question how it happens. Many say it is the worst range they ever shot. Even the 50 cal shooters say that. Matt

 

[Alex Wheeler]

The rifles are capable of much smaller than current agg records. If a 10 target agg could be shot early morning in calm conditions lg would be low 2s and heavy mid 3s. Maybe even smaller.

 

[Bart B.]

Nothing in post 25 answers my question.

Nothing in post 25 is something I don't already know except for one range's issues.

A 6 inch agg's biggest group could be 8 inches.

 

[Bart B.]

The rifles are capable of much smaller than current agg records. If a 10 target agg could be shot early morning in calm conditions lg would be low 2s and heavy mid 3s. Maybe even smaller.

Well now, someone finally comes around to answer my questions. Thanks.

Why doesn't the discipline officials set up aggregates that comprise the first match fired each day over a year? The average of 12 monthly events would then might be in the 2's and 3's instead of twice that.

 

[dkhunt14]

Well now, someone finally comes around to answer my questions. Thanks.

Why doesn't the discipline officials set up aggregates that comprise the first match fired each day over a year? The average of 12 monthly events would then might be in the 2's and 3's instead of twice that.

For the simple reason we have 8 relays. Some places have only two or three. That changes aggs drastically. It is on a rotation so you get at least one of each. We used to do 10 relays. The matches are scheduled a year in advance and nobody knows when a storm or windy days are. You just shoot at your scheduled time when it comes. It could be no wind or a hurricane or anything in between. Matt