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try slinging rifle diagonally across your front....left hand will sit on pistolgrip naturally and suppressor will be up out past right shoulder... if you can make sure strap is flat across back of...

you can download with NO PROBLEMS at all....not even slightly hard to make lower recoiling loads...either drop powder charge of projectile weight or both....
its too easy to have a dual load set...

1ltr is still 1kg lol but your 100% correct... the weight of rifle will be fine.try lugging full wood 303 for a couple of days,or something with a bull barrel every now and then and anything...

yip a slightly longer barrel is MUCH MUCH easier on your ears than one below 20" said it before....just ask the fellas whos mate has a short shotgun..they dont want to shoot with him for long.

carry earplugs for the times yo uare setting up for longer shot,or range work..for the up n shoot type shooting,you wont be shooting many rounds and dont notice it..if your mate fires behind you yo...