Save yourself a lot of time and trouble trying to find a similar size spring. These are precision springs, with the correct ID and OD to fit the pin not to mention they are a select diameter of wire with a specific tension rate. Now it's no secret the factory spring is too long (requires too much hammer spring tension) for the given rebound ( a lawyer thing for sure)......Simply: cut off 1/8" off the stock spring length....This easily preserves the rebound for any slam fire sequence, but greatly improves fireing pin speed and greatly improves .22 ignition......consistant ignition is one of the most important factors in achieving 22 rimfire accuracy............... Best regards Plum
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