Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Videos Of Tech Stuff And Reviews


Reply

Recoil reduction on 300 RUM

 
LinkBack Thread Tools Display Modes
  #1  
Old 11-11-2013, 12:22 PM
Platinum Member
 
Join Date: Jul 2004
Location: Texas
Posts: 5,192
Recoil reduction on 300 RUM

I had promised this video a couple of weeks ago and here it is.

After tuning the ports to the max of my calculations, I was very pleased with the outcome.

The last test was the same rifle as in an earlier test the earlier test was with a slightly tuned
Assassin and the last was max. while testing we got over 70% on a 30/378 (No Video).

Enjoy

J E CUSTOM
__________________
"PRESS ON"
Reply With Quote
  #2  
Old 11-11-2013, 04:55 PM
Gold Member
 
Join Date: Feb 2013
Location: Central MT
Posts: 569
Re: Recoil reduction on 300 RUM

Thanks for taking the time to post the video. Interesting sled.
__________________
Shoot CONFIDENT, Shoot SMART, Shoot STRAIGHT
Reply With Quote
  #3  
Old 11-11-2013, 06:41 PM
Platinum Member
 
Join Date: Jul 2004
Location: Texas
Posts: 5,192
Re: Recoil reduction on 300 RUM

Quote:
Originally Posted by MMERSS View Post
Thanks for taking the time to post the video. Interesting sled.
A good friend built the sled. after we looked at all of the ways this was the most accurate and repeatable method we could come up with.

We looked at smooth surfaces and they weren't repeatable.

Next we looked at weights and found that they were not accurate because the rifle had to overcome
the inertia of the weights before it could move and different recoil values could not be predicted.

By using the different springs with a spring rate chart for each combination we could calculate the recoil using standard charts and the device would almost exactly duplicate the numbers. In fact
It reads almost one pound greater than calculated so our numbers are slightly conservative.

It is also extremely repeatable (Very important for comparing results).

The device/sled only has a couple of pounds applied in battery, so the rifle is aloud to start moving instantly .

The name (Recoil Master 3000)started out as a joke but it stuck.

Each time we started a test we first tested a 30/06 with no brake and the same ammo as always
to make sure we had consistent results.

My friend Carl designed and built it, and I give him full credit for a very good test bed.

J E CUSTOM
__________________
"PRESS ON"
Reply With Quote
  #4  
Old 11-11-2013, 06:51 PM
Gold Member
 
Join Date: Feb 2013
Location: Central MT
Posts: 569
Re: Recoil reduction on 300 RUM

Thanks for the information. Nice to see shop projects put to good use.

Do you have "hurt" indicators on the slide scale? This mark here will hurt a-little, this one more and this one a-lot!
__________________
Shoot CONFIDENT, Shoot SMART, Shoot STRAIGHT
Reply With Quote
  #5  
Old 11-11-2013, 08:04 PM
Platinum Member
 
Join Date: Jul 2004
Location: Texas
Posts: 5,192
Re: Recoil reduction on 300 RUM

Quote:
Originally Posted by MMERSS View Post
Thanks for the information. Nice to see shop projects put to good use.

Do you have "hurt" indicators on the slide scale? This mark here will hurt a-little, this one more and this one a-lot!

I would depend on the shooters tolerance to recoil.

I find that the 15 ft/lbs of recoil energy is enough for many.

Then you step up to 20 to 25 ft/lbs for the experienced shooters.

35+ ft/lbs would be the point that recoil would be acceptable to some.

Most people draw the line at anything over 50 ft/lbs.

I my self are in the brain dead group that will tolerate 80 ft/lbs but the fun has gone out of shooting more than 8 or 10 shots.

There is however one group that will shoot up to 100 ft/lbs and swear that it did not hurt.

Everyone has a different level but anyone should be able to handle 12 to14 ft/lbs .

Just my thoughts.

J E CUSTOM
__________________
"PRESS ON"
Reply With Quote
  #6  
Old 11-12-2013, 04:21 PM
Silver Member
 
Join Date: Oct 2005
Location: Fort Morgan, Colorado
Posts: 175
Re: Recoil reduction on 300 RUM

Very Impressive! Is this brake available for purchase? I am currently building a 300rum and I like what I see here! Curious about a price.
Reply With Quote
  #7  
Old 11-12-2013, 05:13 PM
Platinum Member
 
Join Date: Jul 2004
Location: Texas
Posts: 5,192
Re: Recoil reduction on 300 RUM

Quote:
Originally Posted by dodgefreak8 View Post
Very Impressive! Is this brake available for purchase? I am currently building a 300rum and I like what I see here! Curious about a price.
Yes . I sent you a PM

J E CUSTOM
__________________
"PRESS ON"
Reply With Quote
Reply

Bookmarks

« new web site help. | - »
Thread Tools
Display Modes


Current Poll
In the last 12 months, what was your longest rifle kill on big game?
0 to 200 yards - 25.86%
1,475 Vote
201 to 400 yards - 32.08%
1,830 Vote
401 to 600 yards - 23.12%
1,319 Vote
601 to 800 yards - 10.01%
571 Votes
801 to 1,000 yards - 3.94%
225 Votes
Over 1,000 yards - 4.98%
284 Votes
Total Votes: 5,704
You may not vote on this poll.

All times are GMT -5. The time now is 10:43 AM.


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