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Trouble shooting H&R .22 Short Conversion and other feeding issues

The .22 Short has less power than the .22 LR so you may need a lighter recoil spring to gain reliable functioning. It's possible to cut as much as two coils off of the recoil spring to improve operation. Reduced Power Recoil Springs are also available from Wolff Springs.

The normal feed of the gun should not cause damage to the nose of the bullet. Closing the rear of the front lips will help get the cartridge up faster. What happens is, the rim of the cartridge strikes the rear of the forward feed lips and deflects the cartridge up faster and this will reduce or eliminate damage to the bullet. The width of the front feed lips should be quite snug to the body of the cartridge. Closing the front of the rear lips also helps to avoid releasing the cartridge too soon so it won't have a tendancy to pop-up to a stovepipe type of position.

Making the .22 Short work requires some trial and error and at best, there is no set formula to make every magazine work in every pistol. Ammunition rim thickness, amount, and type of lubrication as well as bullet design can also cause feeding problems to be encountered. Try shooting different brands of .22 Short ammunition until you find one that feeds reliably.

Is there a way of making my new High Standard magazines work better in my High Standard pistol?
The High Standard magazine that is manufactured today is essentially the same in dimension and specification as all High Standard magazines that have ever been produced. The only basic changes that have been incorporated in today’s magazine simply provide for changes that have occurred in .22 long rifle target ammunition.

There are several things that should be noted with new High Standard magazines:
1. Older frames in the Model 106, Model 107, ML Series, and HS Series could have a radius in the top rear of the magazine slot. The magazines produced today could stop 1/4 in. short of locking into these frames due to this radius. To correct this, the radius must be removed from the frame by machining.
2. All magazines are gauged to be under .360" wide. However, if you receive a magazine that is wider than .360", you can easily correct this with the use of a dial caliper and a pair of pliers or vise grips.
3. Magazine feeding is very sensitive to the particular ammunition that is being used. Due to the wide variance in ammunition specifications the width of the magazine’s feed lips must sometimes be adjusted for the particular target ammunition to be used to obtain maximum reliability. The basic dimensions should be .230" wide for the rear of the front lips and .185" wide for the front of the rear lips. The front and rear lips should also be kept parallel.
4. Magazines should always be kept clean and well oiled.

Please Note:
1. The .230" dimension is fairly constant for all ammunition. The .185" dimension should be increased if the bullets are feeding too low, and it should be decreased if the bullets are feeding too high. This adjustment can be accomplished with tools such as needle nose pliers. You can also make your own tool with a piece of ¼"x12" flat stock by sawing a slot in the end.
2. Due to the overall length of some .22LR match ammunition, it may be impossible to get the magazine to feed 10 rounds properly.