Clark
Member
http://www.brownells.com/.aspx/pid=18220/sku=902-000-074/Product/Limbsaver-Grind-Large
I can see 12 rifles I have with large Limbsaver grind to fit recoil pads, that I did not grind.
Recoil pain is from too many pounds per square inch of pressure on skin that has nerves in it.
The ways to reduce peak pressure is to spread the recoil over area, time, distance, and dampening:
1) Soft [compliant] recoil pad that conforms to the shape of the body, so whole area of the pad applies pressure to the body.
2) Large area recoil pad. The larger the area, the lower the pressure.
3) Correct softness of thick recoil pad should compress full length but not bottom out, thus spreading the recoil over the time it takes to compress the pad that distance.
4) Make pad of a material that is lossy [converts recoil energy into heat], and Limbsaver* is the one that does that.
With this system I can shoot a 338 Win Mag 250 gr 2650 fps from a rifle + scope = 9.25 lb and feel no pain.
So shooting 7mmRM 150 gr bullets 3150 fps from a rifle+scope+bipod = 11 pounds is like shooting a varmint rifle.
*"Sims Vibration Laboratory
NAVCOM™ the Magical Material
NAVCOM™ (Noise And Vibration Control Material) is a highly effective vibration control material that absorbs the transmission of vibration throughout the broadband spectrum of 10 to 30,000hz. It was developed by Steven C. Sims in 1980 after 18+ months’ testing and trying various combinations of butyl, raw silicone rubber, sorbothane, neoprene and numerous other visco elastic materials in reducing direct vibration. It gained its initial success in the audio, consumer electronics, aerospace and automotive industries. NAVCOM™ has since been used in numerous patented products including recording studio insulation, computer hard drive isolation, mounting grommets, equipment handles and multi-purpose vibration absorption pads. More recently NAVCOM™ is being applied to recreational and sporting equipment to improve performance and increase the participant’s comfort. Some of the prestigious companies using our products made of NAVCOM™ are Louisville Slugger® baseball bats, PowerBilt® golf clubs, PSE® bows, Hoyt® bows and Remington® Arms recoil pads to name a few.
Simply put, NAVCOM™ has the highest energy absorbtion rate with the fastest settling time characteristics of any material tested to date.
Each graph illustrates the amplitude of the generated wave as a function of maximum change in decibels. The horizontal axis shows the decay time in milliseconds. It is evident from testing that NAVCOM™ outperforms the other visco elastic materials in reducing direct vibration. This test represents only a small amount of the complete test data recorded for NAVCOM™."
I can see 12 rifles I have with large Limbsaver grind to fit recoil pads, that I did not grind.
Recoil pain is from too many pounds per square inch of pressure on skin that has nerves in it.
The ways to reduce peak pressure is to spread the recoil over area, time, distance, and dampening:
1) Soft [compliant] recoil pad that conforms to the shape of the body, so whole area of the pad applies pressure to the body.
2) Large area recoil pad. The larger the area, the lower the pressure.
3) Correct softness of thick recoil pad should compress full length but not bottom out, thus spreading the recoil over the time it takes to compress the pad that distance.
4) Make pad of a material that is lossy [converts recoil energy into heat], and Limbsaver* is the one that does that.
With this system I can shoot a 338 Win Mag 250 gr 2650 fps from a rifle + scope = 9.25 lb and feel no pain.
So shooting 7mmRM 150 gr bullets 3150 fps from a rifle+scope+bipod = 11 pounds is like shooting a varmint rifle.
*"Sims Vibration Laboratory
NAVCOM™ the Magical Material
NAVCOM™ (Noise And Vibration Control Material) is a highly effective vibration control material that absorbs the transmission of vibration throughout the broadband spectrum of 10 to 30,000hz. It was developed by Steven C. Sims in 1980 after 18+ months’ testing and trying various combinations of butyl, raw silicone rubber, sorbothane, neoprene and numerous other visco elastic materials in reducing direct vibration. It gained its initial success in the audio, consumer electronics, aerospace and automotive industries. NAVCOM™ has since been used in numerous patented products including recording studio insulation, computer hard drive isolation, mounting grommets, equipment handles and multi-purpose vibration absorption pads. More recently NAVCOM™ is being applied to recreational and sporting equipment to improve performance and increase the participant’s comfort. Some of the prestigious companies using our products made of NAVCOM™ are Louisville Slugger® baseball bats, PowerBilt® golf clubs, PSE® bows, Hoyt® bows and Remington® Arms recoil pads to name a few.
Simply put, NAVCOM™ has the highest energy absorbtion rate with the fastest settling time characteristics of any material tested to date.
Each graph illustrates the amplitude of the generated wave as a function of maximum change in decibels. The horizontal axis shows the decay time in milliseconds. It is evident from testing that NAVCOM™ outperforms the other visco elastic materials in reducing direct vibration. This test represents only a small amount of the complete test data recorded for NAVCOM™."
