[Redcat]

Does anyone know if the BVAC ammo is loaded light or hot?

I couldn't tell from shooting, but I just review my brass, and 85%+ had case swipes.

The primers didn't look flattened but the may be small primers.

I was shooting back in January, 30-40 degrees F outside. No major ammo dumps.

Barrell is a Cardinal Armory 18" SPR, and it slugged just fine.

Mike

 

[ron169]

I think you are the first member of the forums to purchase and shoot the Bvac ammo. If I were you I would try some SSA commercial and Tactical loads and check for swipes on the Tactical loads. SSA ammo seems to be the true test for pressure

 

[Equalizer_2]

I have only fired 5 rounds 110 gr VMax from BVAC but all I can see on the case heads is that the primers show a little flattening compared to unfired rounds. I think some flattening is normal especially if they are not using a harder cup primer like the CCI #41. I don't know what they use as the BVAC site does not have a lot of info available. I shot the 5 rounds in a light snowfall probably about mid 30* temps. I didn't notice any difference in the recoil from the Remington FMJ that I shot but I wasn't looking for any. I was only function firing and swapped off my Remington brass and ammo for more BVAC so I can't compare anything with the different cases. The BVAC uses SSA brass with small rifle primers and the Remington used large and I only wanted the small and the best.

BVAC now offers a 130 gr SP loading but I have no other info on it.

 

[Redcat]

I don't think BVAC is loaded overly hot.

I tried SSA Commercial Sierra Pro Hunter, and I saw the same ejector swipes on every piece of brass I inspected.

Later I tried SSA Sierra Pro Hunter Tactical and didn't end up with swipes on about 40% percent of the brass.

I've seen the same amount of primer flattening on the tactical as well as the commercial ammo.

I'm at a loss for words here.

 

[paulosantos]

Weere you able to chrono it?

 

[ron169]

If your showing primer problems and swipes, It would sound like a pressure problem due to the chroming, which is odd since yours checked out. Did you check the chamber as well as the barrel?

 

[Redcat]

Unfortunately I don't have a chrono so I wasn't able to do that.

I was thinking of taking some bore paste, and a .45 cal mop to the chamber and seeing if that will help.

Mike

 

[ron169]

You could get on the list for Paulo's SPCII reamer. Shouldnt cost much and you can see how much material is removed

 

[Equalizer_2]

You could get on the list for Paulo's SPCII reamer. Shouldnt cost much and you can see how much material is removed

Just finished using the reamer tonight and there is not much material removed because it is only opening up the throat something like 0.05 inches but this may be 0.005 inch. I don't recall exactly but others do know. It is a quick simple job following the instructions and there is not much material removed. The pressure reductions from doing this IIRC are in the 3-5000 psi range.

 

[Redcat]

I'm planning on cleaning the chamber with bore paste. The only brand I could find is the Break Free bore paste.

I did get a .45 cal nylon brush, and found a 7mm bronze brush. Will the slight size difference be a problem?t

 

[Redcat]

Here a couple images from spent brass:





I left a lot of the resolution so could zoom in if needed.

Any thoughts?

 

[paulosantos]

I see some ejector marks on some of them. It looks a little hot, but I've seen worse.