Detailed Notes on cci 400

To handle this, I decided that I might examination five distinctive prices of exactly the same powder, H4350, with the exact bullet (142 SMK). I loaded ten rounds of every load in Each individual type of brass and fired two 5-shot teams at one hundred yards with a Ceremony in the Rain Storm Sight Target. I employed a MagnetoSpeed V3 Barrel Mounted Ballistic Chronograph to assemble knowledge for each 10 shot sequence. The situations utilised On this spherical of tests are 2XF.

Rear drill contains a RCBS primer pocket uniformer that guarantees all primer pockets are a similar depth for correct primer seating.

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There weren’t enough hundreds on 6mmBR.com referencing substantial rifle magnum primers to supply an enough sample dimensions for any comparison. Having said that, Here are several of the magnum primers usually utilized for match quality ammo (no specific buy):

It can be legitimate, that a magnum primer May very well be required to thoroughly ignite SOME 5.56 ball powders (and Other people) in extremely chilly conditions ... and is a component of The explanation the military employs them. We experienced a afcomer from Alaska who was obtaining this extremely dilemma in the Discussion board a few years ago.   He was working with 335 and typical primers in bone chilling temps and getting troubles prior to he switched .... I'm able to' don't forget exactly however, if my memory serves that it absolutely was colder than -20 ambient and his rifle/ammo was outdoors for some time.    My older reloading manuals cci 400 referred to as for magnums any time H335 was Employed in 223.

on the final purchase I bought from Wideners they emailed me and claimed the were being from the massive rifle Wolfs and not finding them yet again so that they substituted CCIs

I have utilized CCI four hundred's For many years, in no way had a problem with pierced primers/slam fires.  I've observed them obtaining flatter when compared to the 450's or magnum primers.  But its on the 400 cci primers higher conclusion of loadings around max.  

For prolonged-range function, all that truly matters is that if our bullet impacts the focus on downrange. Precision and velocity have an impact on that, but so do many other elements! So this text is just like the grand finale and ranks which ammo gives us the very best odds of connecting with extensive-assortment targets.

We decided that a chronograph was a good location to get started on. Taking pictures our various hundreds more than the chronograph, and modifying very little with regard to the loads in addition to switching into a magnum primer, we obtained no discernible improve in any way in regular velocity. Many years afterwards, I bought a duplicate of Quickload on my Laptop. I uncover this commentary through the Quickload buyers manual to be in line with my encounter:

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Looking at common deviation, I don’t see a clear winner. It does look like the 40.8 grain load has the lowest normal SD amongst the masses.

I have loaded tens of Countless the load previously mentioned and have never had a slam fire and never had a pierced primer. If youre loading extremely high pressures you could possibly operate into concerns, but I hope you're thinking that each and every retailer employs CCI 41s.

The cci 400 one time 450s, BR4s, 41s must will need to be used is If you're pushing abnormal pressures endeavoring to chase some mil spec pie while in the sky selection for velocity.  And also to be sincere, most mil spec masses are garbage for accuracy, so why folks consider is outside of me.