To address this, I decided that I might take a look at five diverse rates of a similar powder, H4350, Together with the similar bullet (142 SMK). I loaded ten rounds of each load in each sort of brass and fired two five-shot groups at a hundred yards on a Ceremony while in the Rain Storm Sight Focus on. I utilised a MagnetoSpeed V3 Barrel Mounted Ballistic Chronograph to assemble information for every ten shot series. The instances employed In this particular spherical of tests are 2XF.
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The only time 450s, BR4s, 41s should really need to have for use is Should you be pushing excessive pressures looking to chase some mil spec pie in the sky variety for velocity. Also to be honest, most mil spec loads are garbage for accuracy, so why men and women try is beyond me.
Chronograph info Using the magnum primers was indistinguishable through the chronograph details Using the 400's.
If you don’t head jogging primers which might be 0.010” THINNER than the primers Typically useful for that caliber, you can be high-quality right until You begin piercing primers, and torching firing pins and bolt faces.
I also detailed the velocities over the table higher than. You’ll Be aware that the CCI two hundred and 400 have the highest velocities for all loads. I’d attribute this to the alter in ambient temperature.
Frankly, I do not Imagine any of us even experienced personal computers besides maybe a few men with the INTEL 486 for term-processing and participating in "DOOM" once we identified CCI four hundred's were unsuitable back within the mid-ninety's. We weren't having our load facts from Quickload. We have been using masses recommended by Sam Dayton - the gunsmith who assembled lots of the rifles employed by the group.
As I claimed, my load is straight from hodgdons Web page for 223 and so they suggest WSR. No really need to go along with 41 when you are loading lower stress plinking masses.
Description two Testimonials CCI Primers are repeatedly analyzed and improved. As a result today's CCI primers are more sensitive, easier to seat plus more compatible with progressive and automated loading tools than in the past ahead of. They utilize modern day non-corrosive and 400 cci primers non-mercuric initiator mixes to the cleanest burn off possible.
I did not use the round-robin strategy. Each and every 4-shot group Using the same was shot at 1 time. Then I moved on to the next primer. Every thing felt ideal for each and every shot fired today. Not surprisingly I could repeat the test tomorrow and it may be correct opposite of today’s exam. We are able to chase this permanently. But [soon] I’m gonna test the BR4 and four hundred primer… for greatest precision and regularity for 10 photographs Each and every.
By no means have pierced one or had a slam hearth although but have only made use cci 400 primers of about 400 cci primers a thousand cci400s in my life time
Why would the all the opposite users of my rifle staff who were obtaining precisely the same dilemma with common little rifle primers of assorted models, and with other several hundreds?