The IMR 4955 Diaries

As being a sensible make any difference do you frequently shoot at temperatures various from temperature at which you zeroed the scope? And is particularly the temperature in the ammunition various from that of your rifle and scope?

And the velocity was averaged among The 2 chronographs. There is no way we could know of course which one particular was suitable, so the safest bet was only to normal them. They were being very, really near … so it didn’t actually make any difference A lot.

Subsequent this, as I, like most listed here am now evaluating this powder for my current 7mag workups for all of the reasons pointed out.

Ideally, you’d burn your powder. But For most it arrives down to a price/benefit analysis of muzzle velocity and barrel weight and maneuverability. There isn’t a wrong or right remedy below. It arrives right down to application and personal desire.

Hey, I loved the Oehler 35p. I was it’s major lover. But in my perspective, the working day and age of The sunshine-primarily based chronograph are more than … no less than for me. The LabRadar is the final word Remedy in my view (at the least for shopper/prosumer options below $1k). You'll be able to virtually set it up and be able to shoot in below 30 seconds, and I feel it’s one of the most precise machine. It doesn’t affect barrel harmonics much like the MagnetoSpeed, so Which means you may history muzzle velocities and shoot for teams or do load development simultaneously.

Get started at the published starting load and perform up together with your chronograph right up until you receive to the utmost printed velocity. There is not plenty of difference between All those two bullets to bother with, as well as the max SAAMI tension within a thirty-06 is lower adequate to deliver some leeway. Add/subtract about twenty five fps imr 4955 load data per inch that a barrel is shorter or more time.

I would think in most circumstances the temperature in the ammunition is identical at that of your rifle and scope.

Fantastic issue. We didn’t look ahead to imr enduron powders it settle again all the way down to ambient. They had been shot in the extremes. That would have effectively be screening the effects of storing ammo at Extraordinary temperatures, which I don’t Imagine might have around as dramatic of the influence. But I don’t are aware that, so it’d be something else attention-grabbing to check!

Many thanks LV, I was considering attempting some one hundred forty’s with the IMR 4955. It seems the heavier bullets trigger the early tension. I was considering lighter bullets could well be much better for faster burning powders.

A different point that came to my mind, that retained me questioning Considering that the introduction in the magnetospeed:

The principle characteristics of the Enduron series are copper fouling eliminator, insensitivity to temperature alterations, best loading density and currently being eco-friendly. This propellant performs comparably to Hodgdon H4831 but charge weights are materially various.

But much too the posting, did you fellas shoot the ammo while they were being continue to of their temperature extremes, or allow them to settle all the way down to ambient?

be far more temperature secure. Some shooters have explained to me IMR 4451 authorized them to squeeze a little more velocity out in their rifles, compared to H4350. We could’t verify or endorse Individuals promises, but it'd be some thing to keep in mind when beginning load improvement.

They advise you place the Doppler beside the rifle, and it looks like they may account for that offset as they interpret the effects and correct for it. The middle of the system is generally IMR 4955 a lot less than 12″ from the barrel, which isn’t Considerably when you’re referring to measurements taken fifty-80 yards down vary.