Detailed Notes on cci 400
Detailed Notes on cci 400
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A lot of visitors commented which i was evaluating the “most effective” huge rifle primer to the inferior small rifle magnum primer and proposed a comparison of exactly the same manufacturer primers. To that conclusion I have repeated a similar exam among the CCI two hundred (standard large rifle) along with the CCI four hundred (typical little rifle) primers.
I am nicely knowledgeable, but am thinking about the technical aspect of how the primer produces a special POI
Simply because the creedmoor is often a 308 household circumstance intially created all over a LRP, I lean in direction of constantly utilizing a hotter primer if working with SRP brass. Not declaring you cant/wont do incredibly perfectly with an ordinary SRP but specifically for hunting/cold weather situations, I would want a lot more spark.
Comparing hand load info is often interesting, there are many variables to control for it is tough to acquire reliable info. Enable’s say As an illustration, in the case of this brass scenario examination, I ran the exact same load in both cartridges. One particular could argue that the load was optimized for a large or smaller rifle primer and that it doesn’t automatically display the key benefits of one about one other.
It is really a bit thicker sheet-inventory brass and marginally more priming element. And by the point your'e completed assembly, packaging, delivery and distribution - if those substance expenses insert as much as over $one (w/margin)/1K in reality; I will take in my hat.
Amen... I've analyzed BR4's vs 400s. Certainly no big difference in my rifles. Ive analyzed incredibly sizzling masses compressed loads with sixty eight-77gr bullets with 8208 XBR with no primer challenges with 400s, but ultimately, best 400 cci primers accuracy arrived having a decreased powder charge so its a moot issue.
Why would the all another associates of my rifle team who were being possessing the identical problem with conventional smaller rifle primers of varied brand names, and with other different masses?
If you don’t thoughts managing primers that happen to be 0.010” THINNER compared to the primers Generally useful for that caliber, you will end up fantastic until eventually you start piercing primers, and torching firing pins and bolt faces.
wind gypsy explained: Simply because the creedmoor is often a 308 family members case intially made about a LRP, I lean in direction of often utilizing a hotter primer if employing SRP brass.
This was unsatisfactory for My Looking utilization of that bullet. I am now making use of the remainder of the BR4's for plinking/closer assortment practice. The team sizing was the same. Of course, for deer sizing animals if taking pictures for that lungs, it most likely would have been OK, but not for me.
Quoted: It is genuine, that a magnum primer Could be required to thoroughly ignite SOME 5.fifty six ball powders (and Other individuals) in extremely cold conditions ... and is a component of the reason the navy cci 400 employs them. We had a afcomer from Alaska who was acquiring this pretty problem within the Discussion board a few years back. He was making use of 335 and standard primers in bone chilling temps and owning issues ahead of he switched .... I can' recall specifically however, if my memory serves that it absolutely was colder than -20 ambient and his rifle/ammo was exterior for quite a while. My older reloading manuals identified as for magnums any time H335 was Employed in 223.
Situations: The screening was done in the morning around flags. The flags under no circumstances moved or perhaps twitched. I'd as ideal ailments as I could have requested for. It was overcast so no mirage and no wind. There were no other shooters, just me. Test Procedure: Each shot was specifically shot at my speed and centered the absolute best making use of cci 400 my Nightforce fifteen-55X scope.
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