Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > 7mm STW


Reply

7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

 
LinkBack Thread Tools Display Modes
  #3025  
Old 03-17-2013, 03:05 PM
Bronze Member
 
Join Date: Jan 2013
Posts: 66
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Nice graphs but every barrel and chamber is going to act different depending on the throat length and actual barrel constriction. Another thing to take into account is the rifling cuts (shape) and number of rifling (5 in my case).
Have you ever graphed anything with Retumbo? We chrono'd some 190 VLDs in a 300 WM we built with a 28" barrel and were able to push them to 3200 (3192 actual average) without any pressure issues with the retumbo.
I had PTG change the reamer dimensions around a bit and base the throat around the 168 berger's.
__________________
Ben - Gunsmith
Trails End Gunworks
209 S. Magdalen
San Angelo, TX 76903

Shop Number - 325-212-4392
Reply With Quote
  #3026  
Old 03-17-2013, 03:36 PM
Platinum Member
 
Join Date: Jan 2010
Location: Leominster mass, originally Salisbury Maryland
Posts: 1,324
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by SFR292 View Post
Nice graphs but every barrel and chamber is going to act different depending on the throat length and actual barrel constriction. Another thing to take into account is the rifling cuts (shape) and number of rifling (5 in my case).
Have you ever graphed anything with Retumbo? We chrono'd some 190 VLDs in a 300 WM we built with a 28" barrel and were able to push them to 3200 (3192 actual average) without any pressure issues with the retumbo.
I had PTG change the reamer dimensions around a bit and base the throat around the 168 berger's.
Ben, what advantage do you see in a 5R barrel. The Brux I am using on my 280 is a 5R, but I'm really not up on the advantages of it yet, but will find out soon. Less friction, more bite on the bullet due to larger engraving? Thoughts?
__________________
AIM SMALL,MISS SMALL. 7 STW
LIFE IS TOO SHORT! AND WE ARE A LONG TIME DEAD!!!
Reply With Quote
  #3027  
Old 03-17-2013, 05:33 PM
Silver Member
 
Join Date: Oct 2011
Location: Bend, Or
Posts: 316
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Ben, I sent you a PM.
Reply With Quote
  #3028  
Old 03-17-2013, 05:46 PM
Platinum Member
 
Join Date: May 2012
Location: N.D.
Posts: 3,013
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by 7stw View Post
Hey Lefty, wow, those charts re amazing! Am I reading 72,000 kpsi on that fourth chart? And that is with the Winchester factory ammo too, right? That chart does make you wonder about the need for a longer or shorter barrel huh?
How do you go about getting a strain gage, and what do you plug it into to read it? That stuff seems interesting to me! Thanks for the post!
My brother in law had purchased a pressure trace system as he was having a hard time finding loading data for his 338 rum back in '04. I simply bought a guage from him and had it installed back in the summer of '04.

A good thing to remember here is that I didn't have any reference ammo for the rifle so we used the win factory load as a comparison. It was by far the stiffest pressure wise by the normal means; bolt lift, marks on the brass, etc., but was a totally functional load that seemed about "topped out".

btw. you need a laptop computer for the system he had; I wouldn't doubt that a "pad" of some sort may be compatible with current models.

Last edited by Lefty7mmstw; 03-17-2013 at 06:46 PM.
Reply With Quote
  #3029  
Old 03-17-2013, 05:52 PM
Platinum Member
 
Join Date: May 2012
Location: N.D.
Posts: 3,013
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by SFR292 View Post
Nice graphs but every barrel and chamber is going to act different depending on the throat length and actual barrel constriction. Another thing to take into account is the rifling cuts (shape) and number of rifling (5 in my case).
Have you ever graphed anything with Retumbo? We chrono'd some 190 VLDs in a 300 WM we built with a 28" barrel and were able to push them to 3200 (3192 actual average) without any pressure issues with the retumbo.
I had PTG change the reamer dimensions around a bit and base the throat around the 168 berger's.
Retumbo wasn't (and still really isn't) on my radar( I've got a 8# keg but don't shoot it in any rifle I own); if I'm not mistaken at the time retumbo either wasn't even around or was new enough data wasn't out yet.
Rl25 was similar; it didn't exist in any book, but I got some on a whim on sale and worked up a load for it.
This rifle had a standard rem chamber/bbl. with about a 3.800" length to the lands and about 1,000 shots on it at the time. It also had a mild tight spot half-way down the barrel; if you look at the graphs it is rather evident.
Reply With Quote
  #3030  
Old 03-17-2013, 06:13 PM
Junior Member
 
Join Date: Mar 2013
Location: Thermopolis, WY
Posts: 12
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by 7stw View Post
USMC91, first of all, Welcome to " The Brotherhood"! I think you will find the H1000 to be very forgiving, and very stable too. It seems as though you don't get high pressure spikes as much with the H1000. What bullet are you shooting, and how long are you expected shots?
I'm glad to hear that your gun shoots well. Some of those rifles were a little rough around the edges when they first came out, and it seems like they usd a chisel plow to cut the riflings into the barrels. Obviously, yours wasn't one of them! Sounds like you got a good one! Just don't let her get to hot, and three shot, or maybe a series of TWO shot groups are fine. Take care, and good luck!
Thanks, i am shooting berger 168 gr vld. So far i have shot out to 900 yrds. I am going to go as far as i can on targets, on animals it will depend on the situation!
Reply With Quote
  #3031  
Old 03-17-2013, 06:57 PM
Platinum Member
 
Join Date: Jan 2010
Location: Leominster mass, originally Salisbury Maryland
Posts: 1,324
Re: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner

Quote:
Originally Posted by USMC91 View Post
Thanks, i am shooting berger 168 gr vld. So far i have shot out to 900 yrds. I am going to go as far as i can on targets, on animals it will depend on the situation!
Well, in that case, I think you should have a good success with the VLD ,168's. I must admit, I have found them to be very accurate, and I have shot them in one of my other STW's. I just went another way as far as the bullet I shoot when hunting. You will probably find the H1000 to be the cats meow. Shoot and enjoy!!
__________________
AIM SMALL,MISS SMALL. 7 STW
LIFE IS TOO SHORT! AND WE ARE A LONG TIME DEAD!!!
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: 7mm STW Brotherhood - For those who shoot the 7mm Shooting Times Westerner
Thread Thread Starter Forum Replies Last Post
wy. antelope shooting times??? jorvin Antelope Hunting 5 04-20-2013 08:05 AM
nightforce nxs times 2 tjonh2001 Optics For Sale 0 02-09-2010 11:14 PM
.358 Shooting Times Alaskan COBrad Guns For Sale 3 10-20-2009 11:07 PM
first 2 times out Kohly Coyote Hunting - From 10 Yards to over 1,000 Yards 0 01-04-2009 03:34 PM
Some times the shooting gods smile ss7mm General Discussion 12 06-20-2005 03:32 AM


All times are GMT -5. The time now is 01:00 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC