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Optimum barrel time: great theory or bunk?

Just to dig this back up, because it’s an interesting concept. I’m skeptical because if your trying to predict which loads will perform best based on optimal barrel time, then doesn’t it all go out the window the moment that the temperature increases or decreases, thus changing chamber pressure and speed? And any significant elevation or DA changes? Not to mention primer, bullet, powder lot variations. New brass vs 1x fired etc.
The barrel velocity in the vibration cycle changes in the horizontal and vertical dimension so that there are periods where the barrel is moving slowly as opposed to periods when it is moving fast. This is the theory behind harmonics and vibrations such as node 1. In Chris Longs theory it's about the wave being away from the muzzle. In both cases these concepts create wide nodes. I would recommend you read :

Rifle Scopes ExpertVoice Nightforce Prices Unmatched?

Are any vendors on the Hide able to come close to ExpertVoice pricing on the Nightforce ATACR F1 series? Specifically looking at 7-35x and 4-16x in mil-XT--though EV doesn't offer the 4-16x which is unfortunate.

Figured I'd go direct to NF for the 4-16x like I had in the past with the emailed price list, but I believe they're having all mil/LE individuals go through EV now?
You can still order direct through NF with the military/first responder discount on optics not available through EV. The NF NXS 2.5-10 is no longer available.

Maggie’s Motivational Pic Thread v2.0 - - New Rules - See Post #1

CAMARO NO 'E' in Camaro
NO such car as a Camero, doesn't fk'n exist.

Chevrolet Camaro
Well there IS the one-of-a-kind, mid-engine Cam-Aero... Just sayin'. 😂🍻
1968-mid-engined-camaro-camaero-cam-aero-warren-prout-a00.jpg


ETA, car is real, first picture was shit @akmike47 .

Maggie’s Motivational Pic Thread v2.0 - - New Rules - See Post #1

Yeppers… When I was a very young kid, I almost felt bad about killing and eating cattle for a bit until I had to start working with them. Dumb as shit…I began calling them walking potatoes. If there was a way to get into trouble and try to kill themselves or me through utter (udder? LoL) stupidity, they always found it.

Pic thread rules, and related: Just added carrots to tonight’s dinner.

image.jpg

Barrel Torque Ludicrocity

The ramp thread from Harolds book is money. Absolutely solves the problem, EXCEPT that you will yield the action face, recoil lug or barrel shoulder. Back to square one.

Accept that it will not be tight enough to stay together (magnum diameter case @65k plus) and the right way is to make the thread and shoulder interface as perfect as we can so it can return to the same place. Advantage integral lug, advantage integral base (or no penetrating scope mounting screw), advantage high speed CNC threading, advantage perfectly orthogonal face/thread.

Lighter psi and smaller diameter case do not exp the separation issue.

FYI AR style joints are different, require a different discussion.

Takeaway is: not too tight is the right answer. Too tight should at least be determined by calculation, and stay a safety factor below. 75-100 is just right as a general spec. The friction coefficient is a HUGE player in this problem/solution also.

Barrel joint movement due to everything but recoil is the boogey man that destroys my peaceful nights!

Is Russia done pretending?

Mil or no mil, corp or no corp. You get to be col. by merit and competence further up you get by servitude and politics and (pay attention as its important) merit is to be left at colonel rank. Same with every management job you simply won’t be CEO without sucking dick and selling out principles and competence. Human management is fucking dirty business and it takes special kind of person to do it.

Firearms Wts,Wtt,like New 2024 Springfield TRP Classic Commander .45 ,1911

Like the title states
I e got a like New Springfield TRP
2024 manufacturing date
Commander in .45!
This is the newest model with the magwell

Has a FO front site,and Tritium Rear
Comes with box,3 mags,all paperwork
Under 100 rds down range!
Fit and finish is absolutely amazing on the piece!
Frame to slide fit is Perfect 👌
Price is $1200 plus the ride from ffl to ffl

Trades interests are..
All stainless Sig Pistols

HK Stainless USP compact in 9mm or .45

HK P30

Factory built ARs

Snubby 357 mags

°°°°°°I also have a like new Tikka UPR in 6.5 PRC on here for sale
Will trade both on higher end pieces such as 300 prc bolt guns,high end ARs°°°°°

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