Hello
Grouser;
Since you are looking to acquire proper habits, with much apologies please allow me to say that you are not doing it right, and please allow a few observations
1) As indicated by
MMAL and
BeeMaa, you need to use your left hand to pull the stock rearward into your shoulder pocket during aiming, and to control firmly the forearm lift under recoil. The way you hold the sling provides no aiming stability and little recoil control.
2) If it is rested behind the tripod/bipod fork, the swivel stud (when it is located on the forearm, which is not ideal on a high recoil rifle - hence barrel band swivel studs on DG rifles) has a very good chance sooner of letter of biting hard into your left hand when you hold the rifle by the forehand, especially when you get into 416, .458 etc. calibers.
3) Grabbing the tripod/bipod together with the forearm will result in lifting the tripod/bipod off the ground under severe recoil, especially when you get into .40+ calibers, and will slow down considerably a follow up shot as chances are good that the tripod/bipod will not return to its proper position.
4) Therefore, the proper left hand position is to have the swivel stud ahead of the bipod/tripod fork, and to hold the forearm only - not the tripod, and not the barrel - firmly, as follows:
View attachment 369021
5) To minimize the lateral (side to side) sway of the rifle on the sticks, it is important to have the rifle resting on the sticks near the forearm end (which you are doing correctly), otherwise the upper body sway will result in substantial muzzle wobble:
View attachment 369022:
Incorrect position: the rifle rests on the sticks near the front action screw, resulting in the upper body sway inducing substantial muzzle wobble.
View attachment 369023
Correct position: the rifle rests on the sticks near the end of the forearm, resulting in the upper body sway inducing minimum muzzle wobble.
6) To further minimize the lateral (side to side) sway of the rifle on the sticks, it is important to form a triangle between the sticks and the two feet:
View attachment 369024
Incorrect feet position: the two feet in line with the tripod result in the upper body sway inducing muzzle wobble.
View attachment 369025
Correct feet position: the two feet forming a triangle with the tripod result in little to no upper body sway inducing little to no muzzle wobble.
7) To minimize the longitudinal (front to back) sway, it is important to lean heavily (within reason) onto the tripod/bipod (which you are doing correctly). Placing the left foot slightly ahead of the right foot will also prevent tipping backward and loosing balance under strong recoil.
8) To facilitate recoil absorption, it is important that the tripod/bipod fork be almost at shoulder height so that the body can rock back under recoil, rather than fight painfully the recoil, being hunched over the stock (and risking a very painful scope bite).
If regularly practiced, this proper shooting form will result in darn near 100% hits standing off the sticks on an 8" steel plate out to 200 yards, without recoil pain or body hurt, even from the most powerful rifles (e.g .458 Lott).
PS: Keep in mind that full power practice has but little to do with shooting form practice, and that you can practice endlessly and almost for free your shooting form with a .22 LR out to 150 yards on a 6" plate. The passing grade is 5 series of 5 shots each (25 shots total) for 25 hits at 150 yard. Every miss resets the count. By the time you get there routinely (say after 500 to 1,000 .22 LR practice rounds for most folks), you will be amazed to discover that .22 LR shooting form carries seamlessly into full power rifles shooting, and there is not much Africa can throw at you that you will not be ready for