Berger 223 77 OTM Extreme Spread

[rcaples]

Good morning,

Yesterday was shooting a match with my 26” 223 PRS trainer with factory Berger 77 otm. This barrel has just over 400 rds on it. After break-in this barrel has been consistently at 2850 fps with this ammo. My largest extreme spread has never been over 40fps. Using a magneto v3 chronograph not attached to the barrel. Yesterday I had .5mil variation on targets. I would consistently either below or over target, trying to adjust hold on impacts that were dialed using applied ballistics kestrel. So after match I went to see what my velocities were. Here is the chrono after the match. Anyone else seen this much variation in Berger match ammo?

 

[Krob95]

This was with Factory Berger 73gr ammo in my
223. Brand new barrel. It's 80fps than the listed speed on the box in a 22" barrel. ES was 30fps over just 7 rounds.

Not great. But good enough for factory ammo I guess.

 

[spife7980]

Good morning,

Yesterday was shooting a match with my 26” 223 PRS trainer with factory Berger 77 otm. This barrel has just over 400 rds on it. After break-in this barrel has been consistently at 2850 fps with this ammo. My largest extreme spread has never been over 40fps. Using a magneto v3 chronograph not attached to the barrel. Yesterday I had .5mil variation on targets. I would consistently either below or over target, trying to adjust hold on impacts that were dialed using applied ballistics kestrel. So after match I went to see what my velocities were. Here is the chrono after the match. Anyone else seen this much variation in Berger match ammo? View attachment 8024226

Clean it recently? If not see if that brings you back in line. Dragging over cooked on carbon or copper won’t do your numbers any favors.

 

[rcaples]

Clean it recently? If not see if that brings you back in line. Dragging over cooked on carbon or copper won’t do your numbers any favors.

I clean after every match, should have put that in original post. Also bore scopes it yesterday and nothing notable, no carbon ring and only had 100 rounds since last cleaning on it.

 

[BuildingConceptsllc]

What lot number is your ammo? Is it older?

 

[rcaples]

What lot number is your ammo? Is it older?

 

[FLIGHT762]

Berger had a recall on this ammunition, but it was not your lot#. Your lot looks a lot older.

Berger Safety Notice for Four Lots of .223 Rem Ammo « Daily Bulletin

Berger Issues Safety Notice for .223 Remington 77 grain OTM Tactical Ammunition Berger's Load Development Team has determined that some .223 Remington 77 grain OTM Tactical (Product # 65-23030) cartridges from Lot # P002745, P002745-1, P002745-2, and P002745-3 may cause function/ignition issues w...

bulletin.accurateshooter.com

 

[DeathBeforeDismount]

There are alot of reports of berger .223 ammo not shooting well. For $1.rd or more you are better off finding some black hills IMO, or just reload yourself. I am half way through a case of BH blue box for my .223 trainer barrel and its good out to about 7-800 with the 69gr smk.

 

[BuildingConceptsllc]

Berger had a recall on this ammunition, but it was not your lot#. Your lot looks a lot older.

Berger Safety Notice for Four Lots of .223 Rem Ammo « Daily Bulletin

Berger Issues Safety Notice for .223 Remington 77 grain OTM Tactical Ammunition Berger's Load Development Team has determined that some .223 Remington 77 grain OTM Tactical (Product # 65-23030) cartridges from Lot # P002745, P002745-1, P002745-2, and P002745-3 may cause function/ignition issues w...

bulletin.accurateshooter.com

That's why I was asking. I sent them back 17 boxes I think, of 2 lots that I had of it. It shot fantastic in my bolt gun but definitely should not shoot it in an AR. (Those lots that were recalled I mean, not op's)