Laurie loaded .308 Win ammo* with 16 LR primer varieties after which analyzed for common velocity, ES/SD, and group sizing. This may be probably the most complete and complete LR primer exam ever done. Listed below are the primer types examined:

Checking out my stock of primers, I am lowest with SPP at just over 7K. I shoot a small portion of the rounds every month I as soon as did and so Those people 7K will last a reasonably very long time.

223 Rem. They encouraged CCI (more challenging primers) for all masses used in any firearm which has a free of charge floating firing pin as the AR does. Other smart, they explained, it matters very little and all significant manufacturers will ignite regarding the similar.

"Offered satisfactory penetration, a larger diameter bullet could have an edge in wounding performance. It'll problems a blood vessel the smaller projectile scarcely misses.

Occasionally I hand seat with a Sinclair Software and from time to time I seat utilizing the press. After i utilize the push the primers are seated more challenging.As part of your feeling would there certainly be a distinction in ES due to the seating system?

I do think the last thing any of us have to worry about is how pricey manufacturing facility masses or primers are, in comparison with boosts in grocery charges, and so on.

The a person caveat on This can be if you switch from an ordinary to some magnum primer, and It truly is recommended that you back from the cost.

Ordinarily that would indicate a drop in price, but simultaneously I might reckon that the provision curve can be retracting resulting from all the availability and labor troubles. So cost large rifle federal primers will probably keep exactly the same and All round amount produced/eaten will go down.

Nor in case you conclude Federal primers tend to be more highly effective. Exams clearly show Federal rifle and pistol primers have about the exact Electricity as other manufacturers.

I would expect them to possess a bit tighter grouping and velocity variation, but examine of folks which have seasoned the opposite.  

If your recipe calls for a "Small Pistol Primer", and it claims Winchester, If all I will get is CCI, then that's what I exploit. I have by no means experienced an issue but. But which is me. Somebody else might have a unique impression.

IIRC it was purported to reopen this summer time, but I have observed absolutely nothing over it. In the meantime primers are built with imported powder. Which is had a big impact on source and costs.

one fps, way below People of the closest competitor. Against this for the Fiocchis, they have been an Practically slack slot in the conditions and this could possibly have contributed for their consistent overall performance.” — Laurie Holland

There weren’t sufficient loads on 6mmBR.com referencing large rifle magnum primers to provide an adequate sample size for any comparison. Even so, here are some of the magnum primers commonly utilized for match quality ammo (no particular purchase):