Bergara HMR 6.5 Creedmoor Fliers?

I guess I just have trouble seeing anything move that much that quickly. Can 5-10 minutes really see temps increase enough to cause that much shift?

When compounded with other factors that come with a non match load yes. Brass consistency, bullet run out, temp sensitive powder, standard primer, powder charge weight, etc. Those factors are minimized with match ammo that's what makes it more accurate

I have a friend that has a HMR and it shot just so so with 3 or 4 different kinds of ammo. But we ordered some Prime 130g match and it started to make one big hole with it.

Thanks for the info, I'm holing I don't have to order hard to find ammo like prime to get this HMR to shoot

At your chamber is heating up after 2-3 shots it may be "cooking the round" as it sits in your chamber for 30-60 seconds before being fired. When I reload rl17 in my 6.5 I have to watch this. It will go from .5" to 1.5" just from the heat. Very sensitive powder and id assume some factory can be the same. Time to try a different factory ammo. I'd try 143 eldx. Great hunting bullet. O and as far as using a match bullet this is a bear I shot 2 weeks ago with a match bullet. This is the exit. I could put my whole fist in the exit. Warning graphic!

Thanks for the pic! What bullet and caliber and what distance? Did you recover the bullet? Was it in multiple pieces?

This was a .300 win and a 190 gr nosler custom competition at 2925 fps. Shot was only 115yrds. I recovered a piece of the jacket was all.

timberelk said:

If the 140 match flies well and the hunting round doesn't fly well what would you recommend I do? I'm in need of a hunting round out to 600 maybe 700 yards

Click to expand...

If you're under 1.5MOA at that range all shots will be in the kill zone so I wouldn't worry about it and stick to a good hunting bullet.

WildRose said:

If you're under 1.5MOA at that range all shots will be in the kill zone so I wouldn't worry about it and stick to a good hunting bullet.

Click to expand...

Let's fact it, it's the first two shots that make all the difference in the field, after than you're probably just flying lead anyhow.

timberelk said:

In response to using match bullets on game:

Do the match bullets tend to expand less or more than a standard hunting round? Will the match bullets not expand at all when I'm shooting game out to 700 yards with approximately 1850fps-1900fps? Or will the bullet fragment on impact at say 200 yards when the bullets is moving at approximately 2500fps?

Click to expand...

They tend to blow up until you get well down below that which is the main reason I won't shoot them at game animals for anything other than head/neck shots on hogs.

timberelk said:

They aren't stringing, just spreading out unpredictably. Thing is something with the gun?

Click to expand...

Probably

I could always sell it and get a ruger RPR or a savage stealth after the season?

Click to expand...

Crazy idea I know but I'd probably call Bergara and discuss it with them.

timberelk said:

... .
I'm also having extraction issues, when I pull the bolt back, the case contacts with a bur or sharp corner on the inside of the action and leaves a small grove in the casing. It's enough to stop the bolts monitor unless you apply some force. Are these casings ok to reload?

Click to expand...

This is the issue I'd be concerned with. Check the inside of the bolt and see if you can find a burr or perhaps some brass shavings. In either case you would have a problem Bergara needs to correct.

If you haven't bedded the action do it. The one I looked at was a loose fit.

Taken from Bergara's website...

"All B-14 rifles are capable of producing sub-1.0 MOA groups or less at 100 yards using factory match grade ammunition."

Did you try match grade ammo? Is probably the first question they'll ask.