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BR primers vs Match primers vs Regular primers

The cup thickness is a factor with a hot load. We shoot a stout 200g Berger load in FTR. I can use a 450 or BR4. A 400 or similar will pierce big time. Personally have not seen a velocity difference between the 450 or BR4.
 
Personally have not seen a velocity difference between the 450 or BR4.

When I did a 308 Win 155.5gn Berger bullet load side by side test series with SR primers, the range of 15-shot average MVs was modest over 14 primer models, around half that of a previous test involving LR primers. changing SR primers seem to have less effect than LR models in this respect, that aside from the claimed improved consistency benefits they offer in 6.5X47L to 308 Win size cartridges and charges. (Also, don't forget the reduction in flash-hole size which has a significant effect in itself.)

Results here:

http://www.targetshooter.co.uk/?p=2662
 
When I did a 308 Win 155.5gn Berger bullet load side by side test series with SR primers, the range of 15-shot average MVs was modest over 14 primer models, around half that of a previous test involving LR primers. changing SR primers seem to have less effect than LR models in this respect, that aside from the claimed improved consistency benefits they offer in 6.5X47L to 308 Win size cartridges and charges. (Also, don't forget the reduction in flash-hole size which has a significant effect in itself.)

Results here:

http://www.targetshooter.co.uk/?p=2662
Did you see groups change much or was that pretty much like velocity?
 
Groups changed. You do need to retune a load if you change primer. (Groups are included in the feature, even though the primary aim was to look at MVs and spreads.)
 
Employees handling primer compound must pass Fed background check, this is an issue with staffing. There are still block houses on the Federal ammo property.
 
Here is some "food for thought".. I have chrono'ed CCI BR-2s against the CCI 200s>>>>>>ZERO difference in velocity, e.s.s or accuracy. I have NOT done the same thing with Fed 210"GM"s and the Fed 210s>>>but ever since I did the testing with the 200s vs the BR-2s, I don't buy anymore "GM"s and so far there does not appear to be anything lacking. Then you have the CCI BR4s and CCI 450s>>>>a "BenchRest" primer vs a "NON-BenchRest" MAGNUM primer>>>let me hear the chorus of people who would NEVER use a "non-BR" primer, like the 450s instead of the BR-4s>>>oh the silence is deafening!
There are 2 schools of thought here: 1.) certain primers have an affinity for certain powders>>>a case can be made for that; and 2.) you can "build" a load around most any primer>>>>and T-Rust me, a case can be made for that too! So what have you gained by my "observation(s) above? BUY whatever primer you can get your hands on at the moment and BUILD your load around it>>>you will be happy you did! FORGET the ever increasing "value" of monikers!
From my results with the Fed 210, I have not seen a difference in accuracy or velocity between Match and regular. But then again, I weigh all my primers. Different lots can vary and sometimes regular 210 primers weigh out better then Match. Matt
 
From my results with the Fed 210, I have not seen a difference in accuracy or velocity between Match and regular. But then again, I weigh all my primers. Different lots can vary and sometimes regular 210 primers weigh out better then Match. Matt
Thank You Matt! Your testing has confirmed my suspicions about the 210s.
 
Mr. Boyer's book shows his favorite to be the Federal 205-----over the GM205.

At one time, I thought the BR2's were a touch more accurate than 200's at 400 yds
but more comparisons showed a wash under the prevailing conditions,

The shooting lamp is lit------shoot what you got. Be glad.

A. We;dy



.
 
From a Short Range Benchrest point of view, the only thing difference in performance between Federal 205 Match and regular 205’s is the price.

But then, things such as ES and SD are not a big consideration In our game. Just getting them all to go in the same hole, or hit the X, trumps everything else at 100/200/300 yards.
 
I know Im not near good enough to tell any differences in them like some of the guys on here but I’m a creature of habit and want the best components I can get my hands on within reason so I only use the BR’s. I could probably get by with Sam’s choice and be just fine lol but for only a few cents more I’ll stick with what I know and what I’ve used for a couple decades without any issues.
All of you truly intellectual guys breaking stuff down to the micron impress me and I’m proud to know you smarty pants exist but I’ll stay in my corner eating Cheetos from the sideline and watching :).
 
I have been told that the 205Ms are just 205s that have gone through an additional selection and sorting process.
 
I know Im not near good enough to tell any differences in them like some of the guys on here but I’m a creature of habit and want the best components I can get my hands on within reason so I only use the BR’s. I could probably get by with Sam’s choice and be just fine lol but for only a few cents more I’ll stick with what I know and what I’ve used for a couple decades without any issues.
All of you truly intellectual guys breaking stuff down to the micron impress me and I’m proud to know you smarty pants exist but I’ll stay in my corner eating Cheetos from the sideline and watching :).
Federal doesn't have a big price difference between 210 and 210 Match. But now CCI has a big price difference between 400 and BR4's. I really think if you are weighing them, there isn't much difference. Matt
 

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