Recently bought the maple leaf 338 and I'm waiting on delivery of the TM m40a5, should be here Wednesday ? the 338 shoots brilliant even though I do think its the lower power spring. Over the chronograph im getting 75M/S I did see on youtube that you can get it at 3 power outputs.Even so it's shooting .30 at a good 50m and accurately. I have looked online about them both, but can't find a great deal of information on the 338. Such as what internals does it use? I know it's all maple leaf but is it worth upgrading or not certain parts? And is it a VSR basically with all maple leaf upgrades?I definitely want a higher fps. This will not be a fielded rifle. I only go to a indoor site. But more plinking in the garden. So a high fps is something I really want and of course accuracy is a must. Just not sure what springs i can use for it and will it need upgrades for the new spring? As for the m40a5 again I'd like to upgrade it for a higher power if possible. I know it has a small chamber for the air but are the angry gun mods all I'd need ? I believe it was angry gun anyway lol. Long read i know just going heavy into sniper rifles ? any help very much appreciated.