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Eric Cortina vids

Started by LeadHammer, December 12, 2021, 09:40:29 AM

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LeadHammer

I have been watching most of his videos. He has some interesting ones where he interviews some top shooters. Have any of you seen them? Very entertaining.

jvw2008

Yes. Most of them are very good. There are some real pearls in some of them. Like everything else you see or read on the internet, you have to decide what will work for you and what won't. If you are not testing the new things you are trying, you are not doing your job in the learning process.

LeadHammer

Absolutely.  I especially like the Jack Neary ones, and the other guy, ( forget his name ) I think he has an indoor shooting tunnel??
 

lg65cmsd

I've watched several and learned a few things.  He active in a fB group, of thousands, I am a member of and answers many questions.  He has great humor.  He chucked up a bullet in his lathe to point in one video.   And tightened it down very, too, hard, and recommended every one do the same.  He said:  'You have to 'deform to perform'.  LOL   I have yet to see the vids with Neary, next on my list next time I am in the mood to watch his vids.

Dave Collins

There are things he covers that I find I knew about already, but never really interconnected to some of the related items, some serve as reminders of things a person takes for granted. His last vid with Greg from Primal Rights is a good illustration of it, the idea of the ecosystem of ignition and including the bolt assy into it, along with a node in primer seating is a good way to look at it. It makes sense to me, and it's all part of lock time on the gun as well. Granted it is also part of a severe case of OCD so to speak, but, it isn't all that difficult to process either. The pointing out of measuring primer depth and the relationship of the seater to the measurement method being haywire, is a good point, and easily rectified, cleaning and lubing of the bolt is too. Not sure as I want to pay anything to join his forum, the info is out there already, just have to learn what is good info and what isn't. In the course of his discussions on the shows, he gives away the bulk of his procedures anyway.


jvw2008

Keep in mind when watching the Neary interviews:
Jack Neary is a top of the line short range bench rest shooter. I have a lot of respect for his reloading and shooting opinions, however, short range and long range precision can be different animals. Especially in some areas of reloading.

LeadHammer

You are correct Jerry, but I would think if some of the things he notices at short range, would carry over at a longer range.  I enjoyed hearing about reading groups, and focusing too much on a waterline vs a bit of vertical. Makes a guy think at the very least.

jvw2008

Yep I agree. However, before you assume a little vertical isn't bad, you need to see what that increased charge weight does to your entire group dimension at 600 or 1000 yards. I'm just saying you need to test at the distance you are going to shoot.

LeadHammer

This is the interesting part, tuning for a specific distance. Bullet stability, based on velocity, BC, spin rate.
I know in Olympic class archery, we used to shoot FITA. 90,70,50,and 30 metes. 30 arrows at each.  While the arrow has massive flex from when it leaves the bowstring, the arrow has to stabilize as the frequency changes throughout its flight. I have had instances where excluding the wind, or lack of..... I was struggling at a Canadian National tournament in Ottawa at 90 and 70. 50 was decent, and at 30 I set a Canadian record.  70 was usually no problem. 90 was often a bugger. I am sure my bow was a bit out of tune that day, string twist or nocking point change.  I also won an indoor Canadian tournament at 18 meters in Ottawa, I did have a loose nocking point half way through the event, but at that distance I was able to simply adjust my sight a hair several times. At 90 meters I would have been trying an adjustment or string swap, but it would have been bad news.
Not sure how an arrow relates to a bullet exactly but I'm sure similarities exist.

mnbogboy

The vids are pleasant to watch with good clarity and explanations.
11X Grandfather
Part time Savagesmith