MMACFIVE

This podcast from Hornady about load development is worth listening to. Some of the take always are neither a ladder test or 3/5 shot OCW groups come close to defining a loads capability. For standard case size 1 grain power increments are adequate vs the .1/.3 gr most of us use. And with their bullets seat them 0.025 - 0.030” off the lands and forget you have a seating depth adjustment abilities. Of course there a lot more in nearly an 1-1/2 hr podcast but these takeaways spur plenty of controversy. https://youtu.be/QwumAGRmz2I

You should listen to the pod cast. It’s very good and will challenge a lot of our previous assumptions. They are not saying 0.030” off for liability. They saying that seating depth has virtually zero affect and just set it 0.030” off and forget ever adjusting it for their bullets. You really have to have an open mind about all of your previous knowledge when you listen to it.

I agree with finding a low SD. The Hornady podcast I posted claims seating depth has almost zero affect on group size with their bullets. They say set them 20-30 thou off and forget it.

This podcast from Hornady about load development is worth listening to. Some of the take always are neither a ladder test or 3/5 shot OCW groups come close to defining a loads capability. For standard case size 1 grain power increments are adequate vs the .1/.3 gr most of us use. And with their bullets seat them 0.025 - 0.030” off the lands and forget you have a seating depth adjustment abilities. Of course there a lot more in nearly an 1-1/2 hr podcast but these takeaways spur plenty of controversy. I really enjoyed it https://youtu.be/QwumAGRmz2I

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Two unopened boxes and one with 47 in it. $100 plus shipping. MIKE 928.607.6327 Flagastaff

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I have 50 new Winchester 7mm STW Brass for $150. I also have 95 fire fireformed Winchester 300 H&H brass for $150. I did not fire form the brass and was told it has not been reloaded since. It appears to be excellent. I will pay for shipping. Mike text 928.607.6327

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We’re these cartridges loaded recently and is it a different Powder Lot?

Everything I’ve ever read is tha a suppressor will add 10-15fps not reduce it? it seems like this would be easy to verify with your magnetospeed.

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Check out this chart. It extremely doubtful the ambient conditions made a 134 fps difference. Something else is going on…although R17 appears to be one of the worse ones? https://www.google.com/search?q=rifle+powder+temperature+sensitivity+chart&rlz=1CDGOYI_enUS994US994&oq=rifje+piwder+tem&aqs=chrome.1.69i57j0i13i512j0i22i30l3j0i10i22i30.6199j0j7&hl=en-US&sourceid=chrome-mobile&ie=UTF-8#imgrc=iuNGVlPQEfqPnM&imgdii=voZseB2N9hc4ZM

Just to be clear I’m talking about SFP scopes which the Strike Eagle is. Hash marks not changing is one of the advantage Mac that First Focal Plane have.

Wow, just wow. free bump

Don’t make this too difficult. Let’s assume your max magnification is 20x. If your marks are 1 moa at 20 then they are 2 moa at 10x (1/2 the max magnification) and 4 moa at 5x… When you half the magnification you double the hash marks. Good luck

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From GunWerks: Humidity Humidity does play a role in long range ballistics; however the effect is so minimal we can generally disregard it. In a nutshell humid air has slightly less density than dry air so humid air has slightly less drag on a bullet. As I write this, the closest weather station shows 53% humidity in the Revic Ballistic App. A .284 caliber 180 grain Berger VLD bullet at 2,750 fps takes 17.7 MOA of elevation to get point of aim/point of impact at 800 yards. If I manually change the humidity to 5%, it takes 17.8 MOA. Considering your scope likely has 0.25 MOA adjustments, the error here is too small to adjust for. https://www.gunwerks.com/blog/lrp-stories-2/the-effects-of-temperature-and-altitude-in-long-range-shooting-255#

Could you share the article. My understanding is RH by itself has a negligible affect on flight. Often RH is conflated with barometric pressure which has a much larger affect.

I agree that everything has an affect. in particular the moisture content of the powder when loaded...the lower the RH the faster the burn speed. I haven't found any information yet that says the RH changes inside the case after it is loaded though. I seriously doubt outside RH changes can do much to velocities in the short term. I know several times now I've accidently run loaded cartridges through the wash. They have always grouped with unwashed cartridges and the velocities were correct. I have seen 100fps velocity difference from one powder lot to another though. I wonder if the first batch was just older and had a lower RH.

My first, and best.

What is your concern with humidity after they are loaded?