Federal 210m vs 215m primers

[samson]

I have a few questions regarding the 2 primers. Is the 210m strong enough for the 300 WM? and (ON AVERAGE) what is the velocity difference? Ive heard some people say that the 210 will be more consistant in velocity?

[4bycamper]

In my experience, Federal primers are very hot. F210 is plenty hot enough to ignite very slow burning powder. Still, I have never had a problem with too hot a primer.
So you're good either way.



JM .02

[J E Custom]

Originally Posted by samson

I have a few questions regarding the 2 primers. Is the 210m strong enough for the 300 WM? and (ON AVERAGE) what is the velocity difference? Ive heard some people say that the 210 will be more consistant in velocity?

The 210 m will probably give you better standard deviations that the 215 .

The 215s work best on cartriges that use 90+ grains of powder because they are hotter
but on smaller cartriges they will cause the ES and SDs to be greater than the 210s normally.

So I would recomend using the 210 m and if not satisfied then try the 215 but reduce your
loads and work up.

J E CUSTOM

[phorwath]

In my 7mm Rem Mag and 300 Win Mag, it seems like I lost about 35 fps MV with the 210s versus the 215s. I rememeber I had to add about 1-1.5 grains of powder when using the 210s to bring the MV back up to where it was with the 215s.

In general with my loads, I obtained lower ES and SD with the 210s. In one specific load, my rifle did better (ES & SD) with the 215s. But the tendency has been for the 210s to yield less ES and SD in that class cartridge. FWIW.

[samson]

Thanks for the input. This will help out since I have about 1000 of the 210's

[1Jn24]

Originally Posted by J E Custom

The 210 m will probably give you better standard deviations that the 215 .

The 215s work best on cartriges that use 90+ grains of powder because they are hotter
but on smaller cartriges they will cause the ES and SDs to be greater than the 210s normally.

So I would recomend using the 210 m and if not satisfied then try the 215 but reduce your
loads and work up.

J E CUSTOM

What's es and ds?
I got 215 primers for my 308 and was questioning if it was overkill (pretty sure it is) but more afraid of too much pressure since I just read Lee recommends using slower burning powder with magnum primers I'm using Varget.
Pressure conserns legitimate or my imagination?

[Lefty7mmstw]

Originally Posted by 1Jn24

What's es and ds?
I got 215 primers for my 308 and was questioning if it was overkill (pretty sure it is) but more afraid of too much pressure since I just read Lee recommends using slower burning powder with magnum primers I'm using Varget.
Pressure conserns legitimate or my imagination?

If you start at bottom listed charge you will be alright, but a 308 win is a bit small for a 215 unless you are lighting ballc2 or similar.
As to 215's in a 300win, it is all I will use as I hunt with it and it needs to go off when I pull the little lever on the bottom. I hunt in nasty temps some years, and if I'm over 70 gr of powder I won't use a standard primer even if the load is more uniform. I don't have a pet gorilla to drive the bullet out if it squibs on me, so I hit it hard to start with. Don't think a squib will never happen; I've seen it with both shotgun and pistol with listed loads when the temp. gets cold enough. It's a bit easier to drive a bullet(or wad) out of one of those than a 300 win so I don't fool around.