magnumman44
Member
What are the heaviest bullets you have had good results with in a gun with a 1-9" twist? I have a Remington SPS tactical and a new DPMS Sweet 16 that I have some 69 gr and 70 gr bullets...will they work???
I believe this is very true. One rifle could have a 1:8.5 twist and another a 1:9.4 twist, both labeled as 1:9.Many rifle barrels are are only approximately the twist they state.
Actually the military barrels are 1:7 twist and it's for the longer tracer rounds. Tracer compounds being lighter than the steel or lead of FMJ bullets, tracers of the same weight are longer.The bullet the military designed the 1/9 barrels around was the 62gr "penetrator". Because of the steel core in the 62gr these bullets are longer than their weight would indicate so conventional bullets slightly heavier usually also work in these barrels.
I wouldn't say only target shooters need 1/7. The 1/7 and 1/8 twists handle 75gr and 77gr match rounds very well and loaded hot, these rounds do very well for a self defense and home defense round. Hornady's TAP in 75gr is a great performer as is 77gr mk262 ammo when you can find it.Only the target shooters really need a 1/7 for the very heavy Match bullets used in long range competition.
I knew when I typed that somebody would be along and counter it.I wouldn't say only target shooters need 1/7.
Generally, you don't want to go much heavier than 62gr