I had a lot of pain in my neck (At the shoulders and mid back) after trying to get ready for Fall Deer season. Craxy as it may shound I shot my Ruger RA in 450Bushmaster the weekend before with no problem but the next weekend the ULight with 120gnv loads of BH made me miserable for quite some time. In December I was diagnosed with Straightening of the neck part of my spine (Causing spasms), Narrowing of the disks and Moderate Arthritis in the lower neck at my shoulders and in the mid back. So I am in the same boat in respects to heavy recoil. If I shoot a few round from my ML with loads of 120gnV of BH I pay for it for several weeks. ☹ This really just hit me this year. For me switching from Right to left shoulder would only cause the same issues.
So I was looking for a way to reduce the recoil and even considered selling my 50cal UL and getting a 45cal UL thinking it might be a way to lower the recoil but shooting lighter bullets of smaller diameter. After a chat with Saboloader I tried a few test loads with lower charges and lighter bullets. I only had one outing so far due to the crappy weather we have had here. The 2 Bullets I am working with are the Controlled Fracturing bullets from Lehigh, the .400 dia 195gn and the .451 230gn. I got the Blue MMP 40x50 sabots and I have plenty of MMP sabots for the 230.
As I stated I only have one shot session but it was very productive and quite surprising for me as I never really got many light bullets to shoot that well, over the larger weight/diameter bullets, in the past.
The MMP Blue sabot with the .400 195gn CF gave me this over my Chrony.
100gn v 70gnW of BH209 = 1770fps- 1790fps Recoil was Very light.
110gn V 77gnW of BH209 = 1953fps - 1990fps Recoil was a little heavier, but still much more manageable than my normal load of 265gn LehighCF and 120gnV of BH.
Lehigh .451 230gn CF MMP HPH 12 sabot (Turned out to be too tight for this bullet in my rifle so only shot 3) Next time out I will try this bullet in the MMP HPH24 sabot.
100gn V 70gnW of BH = 1768 - 1780 FPS
I stopped here to prevent getting messed up.
Groups were surprisingly accurate but I accidentally threw out the targets so can't post them. Hope to try again when we get some better weather. As I mentioned I was very surprised by the way the 40cal shot and am really hoping to get out and shoot some more. My only problem is I will be starting my testing over with 777 2F as I ran out of BH and cannot get anymore, but was able to get a few jugs of 777.