David,
Whe selecting o-rings do you select an ID of the same dia as the piece that is going to go through it or do you select it one size smaller to ensure a good seal. Also what material have you found to work best with regards to propel resistance... viton,silicone..?
Whe selecting o-rings do you select an ID of the same dia as the piece that is going to go through it or do you select it one size smaller to ensure a good seal. Also what material have you found to work best with regards to propel resistance... viton,silicone..?
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