Remington Express - Titan #1 Spring Length

[W&SP]

Last year tuned my RE .177 - standard clean/polish, new seals and new guide/top-hat. I retained the existing spring but collapsed/polished both ends at it had just been chopped and unfinished. After bedding in, can only get power to around 10 lbs/ft and that’s with around 30 mm pre-load – which seems too much pre-load.

Therefore, decided to replace the original spring as it is quite short - after collapsing it is 200 mm. The Titan #1 is the same ID/OD and similar gauge but is 280 mm long.

Before starting a potentially lengthy session of cut/collapse trial and error, I wondered if anyone knows the approximate suitable length for this spring & rifle? I know it depends on lots of factors and will need fine tuning but a general guide for cutting length would be helpful.

[Rich]

If it helps, I will share with you an Excel spreadsheet I wrote a while back, to help decide spring length. If you know the power you have with a given spring length (assuming it's too great) then it will forecast how much to take off in order to reach your desired power level. But you do need a start point. And you'll need Excel on your PC to run it.

[W&SP]

Thanks that would be helpful!

That will mean that I can cut, test & then have a far better idea of how much to chop off next.

PM sent.

[W&SP]

It's taken me an unbelievably long time to get round to this but thought I'd provide some feedback as I got a result first time.

I chopped off approx 40 mm (5 coils) of a Titan #1 and without any power bands rifle is averaging 11.3 pounds sq ft. This suits me fine.

NB My Remington Express is .177 and has a custom guide and top hat so it might be different for the standard / factory set-up. I'll re-chrono once all's bedded in.

[peddy]

A very underrated rifle, next thing to do is convert to a hw trigger, makes a massive difference. Mines in .177 shooting at 11.7fpe, very little recoil and smooth.

[venoman]

The factory spring is very weak and if it has been cut down to much even by adding pre load spacers you have a job to get power out of them. I often get new Expresses doing 10.5 and under and i up rate them, as well as the AR1 kits i now do a stage one kit for these rifles that is not so expensive.

[W&SP]

A very underrated rifle, next thing to do is convert to a hw trigger, makes a massive difference. Mines in .177 shooting at 11.7fpe, very little recoil and smooth.

Is there much involved in switching to a HW trigger?