Fill for Rear Bag

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I just picked up a Protektor rear bag from Mystic, and wanted to seek out some thoughts and opinions on what others had used to fill their rear bags.

I'll be using mine predominantly for F-Class shooting, so I'm looking for a very stable (HEAVY) bag, but would rather not have to order sand from Sinclair. I've gotten recommendations to use sandblasting grit, as well as pool filter sand.

Any other ideas that may have worked for you, or details on what sandblasting grit would work best?

Thanks,

Scott
 
I used crosman copper washed BB's. Makes a really really heavy bag. Weights about 12 pounds. There are about 15000 BB's in there. Way heavier then sand. If you like you can work sand into the BB's after its full to make it heavier yet.
 
i used playground sand and it was too moist after even laying spread out for a week so i used the fine aquarium sand in stead, its cheap and adds decent weight. use a funnel and the inside of a pen, the part that holds the ink to help it go in. i was told to use lead shot but the only stuff i was able to find came in large bags and would have cost me a lot more than what i paid for the bag. if you can find some cheap then thats your best bet
 
I use the sand they used to use in public ashtrays. We had a bag of it at work that wasn't being used...
 
I honestly think some of us that read this forum make our own lives harder than necessary.
Get some sand, ensure it is dry and fill the bag.
I have the same bag from Jerry and sand from from Home Hardware. My shooting was mediocre before and it remains mediocre to this day.
 
I have done rice,airsoft pellets,and sand I like airsoft pellets the best as they don't weigh so much in my pack
 
Go to a hobby/sewing store and buy the little plastic BBs that women use to fill bean bags and stuff. They make the bag easy to squeeze, and they're lighter than hauling around sand-filled bags.
 
Cinch said:
Good article here --> http://www.6mmbr.com/sandcomparison.html
Click to expand...

This was a very informative article, thanks! And thanks to everyone else for all the feedback, it's very much appreciated.

Since I'm trying to achieve a very heavy, stable bag I think I'll follow Jerry's advice of using sandblasting grit. I've found some stuff that's essentially half magnesium that should do the trick, and the best part is that it's $8 for 50lbs. If my measurements are correct I should be able to get the bag to weigh somewhere north of 10 lbs, which is what I'm looking for. If anyone else in Ottawa is looking for "heavy sand" send me a PM, I think I'll have some to spare.

Cheers,

Scott
 
Why are you guys going for weight? The gun is simply sliding in a low-friction way over the bag on the angled part of the stock when you fire; the recoil is not being reduced by the bag, so excessive weight/inertia is not really helping you.

You want a fill that has low internal friction yet is dimensionally stable under hand pressure, so that you can deform the ears without tiring your hand and introducing tremor. The plastic beads give you this.
 
The reason I want the weight is because it will be inherently more stable, and more repeatable. Having to squeeze the bag introduces another variable, and that's exactly what I'm trying to reduce.

If I was loading a Harris-style bipod I may feel differently, but I've found with my Sinclair skipod having a firm heavy bag helps to guide the rifle straight back and makes for much greater consistency. I tried both last year and after borrowing a heavy filled bag from a fellow competitor I don't think I can go back.
 
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