This one guy at Kames said that if you use a 209 primer then it might effect your accuracy because it has too much of a blast. So..when the trigger is pulled, (if your using 777 pellets) the blast goes throught the holes in the gunpowder and hits the rear of the bullet - displacing it - before the gunpowderevenignites, effecting your accuracy. He told me to use a 410 primer instead (for better accuracy). Is this true????