nhglyn Posted October 23, 2004 Share Posted October 23, 2004 I have a STI Eagle Open gun and am presently shooting 124 gr jhp at about 1380 fps, power factor of 171 +/-. It presently has an ISMI 12.5# spring with 4 coils cut off, but I am wondering if I should go to a lighter spring. 11#? 10#? Can you give me some advice? Thanks for the help. Link to comment Share on other sites More sharing options...
fullauto Posted October 23, 2004 Share Posted October 23, 2004 You dont have to, but you could try a lighter spring to feel if its better for you. You could get a 7lbs spring to see if the gun works, and check how it feels. Lots of shooters prefer light springs, lots of shooters prefer heavier springs. You could check on a timer what spring make you faster and so on. I use a 12lbs spring because I prefer it. The other guys I shoot with prefer 8lbs springs.. - It's a matter of taste, and your gun have to work of course. You could try with no spring at all, the gun works anyways - but I doubt it will work for long :-). Too heavy spring could damage your locking lugs, too light spring could damage your frame. It all takes time - and is called wear and tear, - but if you like your spring and it works - its ok. This might not be the answer you wanted :-). Take care! Link to comment Share on other sites More sharing options...
Still Praying Posted December 1, 2004 Share Posted December 1, 2004 nhglyn I worked out my load for 38 super, then got 7-14# springs and just changed them untill I got to a low recoil point. I use a shock buffer so I could tell if it was to light. The heavier the spring the more recoil I felt. The lighter the spring the more it would hit the shock buff. When I got close (with in 3#) I couldn't tell much difference. Then I tryed double taps at ten yards, 5 sets with each spring and found 8#s is the magic # for me. If you see this try it and let me know how it turns out. I don't know if this is the right way of doing this, it's all I new to do, and it worked for me. Ronnie S Still praying for that A Link to comment Share on other sites More sharing options...
redmercury2 Posted December 1, 2004 Share Posted December 1, 2004 I run 7-11 pound recoil springs in shorty open shooters. usually cut one to three coils off. gotta tune the spring to your load and the feel you like . i always run a recoil buffer,it helps to monitor the slap against the frame according to the degree of indent in the buffer. Link to comment Share on other sites More sharing options...
Still Praying Posted December 2, 2004 Share Posted December 2, 2004 redmercury2 I didn't think about the short guns. That dose sound right, to cut off some of the spring on those. I'm still running a long gun, SVI in 38 super. Old school, but it runs like a sewing machine just louder and a whole lot more fun. I know most guys are going to the shortys in 9mm, but I just cann't give up my SVI 38 super. Sorry that sounded like a commercial, but I'm in love with it. Maybe I'll get one by SVI if they make'em. Ronnie S. Still praying for that A Link to comment Share on other sites More sharing options...
SRT Driver Posted December 25, 2004 Share Posted December 25, 2004 My short Caspian runs best with a 11-12 lb spring with 4 coils cut off and a .90 RedBuff. The slide weighs 9.5 oz and puts 2 rounds right next to each other down to a .12 to .15 split. Tried a 9 and 10 and got some firing pin drag marks on the primers. Link to comment Share on other sites More sharing options...
Newguy Posted December 25, 2004 Share Posted December 25, 2004 I'm also shooting 124 gr. but at a slightly lower pf. My 5" gun works best with an 8 lb spring and a Sprinco. At tis point, I'm more concerned with reliability than feel. I figure I can always get used to feel but not unreliability. I'd start with 8 then 9 then 10 and 11. I use the lowest spring weight that keeps the gun reliable. Link to comment Share on other sites More sharing options...
Dream Posted December 25, 2004 Share Posted December 25, 2004 I second the springco and 8lb progressive spring, It's the setup I run in a full size open gun, shooting 125’s, And I run a springco and a 8lb commander spring in my shorty. I really like the springco system, because it helps protect the frame. Link to comment Share on other sites More sharing options...
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