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All Springer/NP/PCP Air Gun Discussion General => PCP/CO2/HPA Air Gun Gates "The Darkside" => Big Bore AirGun Gate => Topic started by: cfxlongshot on May 10, 2011, 09:12:08 AM

Title: Cool articles on the design of subsonic bullets
Post by: cfxlongshot on May 10, 2011, 09:12:08 AM

This website has some thoughts on the design of subsonic projectiles ie. under 1000fps and what they are designed to do.  For the powderburners the ballistic calculator is really cool.

Title: Re: Cool articles on the design of subsonic bullets
Post by: Rescue35 on May 10, 2011, 09:37:28 AM

Waiting patiently for a link to said website.  ;)

Title: Re: Cool articles on the design of subsonic bullets
Post by: lloyd-ss on May 10, 2011, 08:16:26 PM

Quote from: Rescue35 on May 10, 2011, 09:37:28 AM

Waiting patiently for a link to said website.  ;)

He, he, he.  How's your patience doing?  Lloyd

Title: Re: Cool articles on the design of subsonic bullets
Post by: Bullit on May 10, 2011, 09:20:59 PM

Hope he's not holding his breath Lloyd ;D

Title: Re: Cool articles on the design of subsonic bullets
Post by: cfxlongshot on May 10, 2011, 11:58:55 PM

The website is http://members.shaw.ca/cronhelm/index.html (http://members.shaw.ca/cronhelm/index.html)!!! Sorry guys! I got distracted and went to work and forgot about it.

Title: Re: Cool articles on the design of subsonic bullets
Post by: Rescue35 on May 11, 2011, 10:44:54 AM

Sweet, reading material.

Title: Re: Cool articles on the design of subsonic bullets
Post by: rsterne on May 11, 2011, 12:44:32 PM

Although interesting reading.... I didn't see much that was usable for us, unfortunately....

Bob

Title: Re: Cool articles on the design of subsonic bullets
Post by: cfxlongshot on May 11, 2011, 10:18:39 PM

I think that for big bore hunters having the most efficient and stable projectile with the best possible terminal performance in definitely usable.  It follows the rules that you have to hit where you aim but at the same time have the terminal performance to anchor the animal.  I really like the double ended almost teardrop shaped bullet with the flat nose.  I think I am going to get a machinist I know to make me a mold that looks like that but with thinner grease grooves in .358 that drops at about 125 to 130 grns.

Title: Re: Cool articles on the design of subsonic bullets
Post by: lloyd-ss on May 12, 2011, 10:57:17 PM

I found the " bullet stability factor " calculators interesting, as they deal with the bullet rather than the barrel.
Lloyd