Berger bullets showing pressure

[nksmfamjp]

All good, if you're seating farther than recommended no worries at all as far as that goes. Just don't use data for standard cartridge overall length with a bullet kissing the lands…ask me how i know

Why? What happened?

 

[Calvin45]

Why? What happened?

Hahaha just posted the answer

 

[nksmfamjp]

Okay fine I'll tell you!

When I was new to reloading I kept hearing all about loading close to lands (don't really bother with that anymore) but didn't know how much that changed the pressure. Just went on ahead like a dolt and jammed a 180 btip right on in there with my .300 win mag and kept using the charge I had been using before. - for the record Nosler b tips do just fine with normal
Depths, no need to screw around with that with most hunting bullets.

Aaaaaaanyways….horrendous recoil. Just sounded wrong when it went off too, not your healthy kaboom…just straight up evil sounding. Broke a scope internally. Had to hammer the bolt open with a mallet and pound it back to eject the case (which was sooty and missing a primer with visible web bulge). Happened to have my chronograph out. 3500 fps. When a 24 inch .300 win mag outperforms a .30-378 (at least in their factory ammo), to say that something went wrong is putting it lightly.

I'm glad you are ok….3500fps doesn't come from being in the lands though, imo. I load all th3 time from in the lands on out….I'll bet I've never seen 40 fps change. maybe that one is different.

 

[Calvin45]

I'm glad you are ok….3500fps doesn't come from being in the lands though, imo. I load all th3 time from in the lands on out….I'll bet I've never seen 40 fps change. maybe that one is different.

Big difference…there's no issue loading into the lands IF that's where you're starting your work up from. What I said is that I had a max load established with a ton of jump (my old vanguard had a ton of freebore, more
Than a standard .300 Winnie chamber…I know weatherby doesn't do that for non weatherby cartridges as a standard thing, this one was just chambered generously I guess). And I took that max load with generous jump and with the same charge just went ahead and set it up to jam HARD into the lands. Bonehead move. This sort of thing will always cause massive pressure. Prefer to learn the easy way, learned the hard way as an over eager 19 year old back then.

 

[LocalJW]

From their guide book.

I measured the size of the magazine and built the bullet off that.

They recommend 20th off the lands but then the bullets didn't fit the magazine well so then I could only load a single round at time

Does your velocity match up to what the book says it's supposed to be?

Have not checked velocities on them. Just loaded them for breaking in.

Going to start building some 156s to work up Ladders

 

[cjuve]

You said you were doing break in, were you cleaning between rounds?

 

[JAYgs8163]

6.5 what? Creedmoor, PRC,6.5-47, 6.5-284,…….

 

[Chesterrose79]

I had a Bergara b-14 hmr 6.5 creedmoor. I was running the 147gr eldm's. All through the barrel break in at about 150 round I noticed that my barrel wasn't shooting the same groups with the load I found to shoot good. I had to re do my ladder and when I got up to the top I found pressure early. I talked to a gunsmith that told me that the eldm's have so much bearing surface that you can't shoot them as fast. I also cleaned the crap out of my gun back to steel to eliminate a carbon ring that started forming with h4350

 

[LocalJW]

What pressure signs were you seeing? What was the load data you were using?

I'll post pics of the casing

 

[Stonyman88]

I did the break-in on my new bergara B 14 wilderness Ridge today. I was shooting 130 grain burger 6.5 mm, and a nosler factory seconds for us. I did powder amounts between 49 to 55. I noticed that some of the braas was showing signs of pressure. I'm not even close to what the max was recommended by Berger. Let anyone run into this in the past and have any recommendations I am still new to reloading.

Also along with the seating depth is the B-14 I ,,,,, 24" barrel , most info is on shorter barrels and length can also raise pressure with the seating depth.

 

[Beluebow]

6.5 what? Creedmoor, PRC,6.5-47, 6.5-284,…….

This^^^....I'm guessing 6.5Cm or PRC since it's a factory rifle..........What powder also?

 

[spladi]

I did the break-in on my new bergara B 14 wilderness Ridge today. I was shooting 130 grain burger 6.5 mm, and a nosler factory seconds for us. I did powder amounts between 49 to 55. I noticed that some of the braas was showing signs of pressure. I'm not even close to what the max was recommended by Berger. Let anyone run into this in the past and have any recommendations I am still new to reloading.

Go back to lesson #1 on proper reloading procedures and see if you can resolve it on your own. Reloading anomalies are often a combination of incompatibilities that you will be faced with more than once. If your reloads are within the safe boundaries listed in the reloading manuals then I wouldn't worry about visual variations now and then with components, assuming the gun is up to par.

 

[jd5521]

What pressure signs specifically were you seeing/experience?

 

[MTbackwoods]

Also, is it virgin brass? Brass can give some slight pressure indicators on the first firing as the brass stretches and slams into the bolt face