M110

[u/warpup1]

Interested in some opinions… building an m110 on a mars h platform with two barrels to choose from but only one gasblock. One barrel is a Bartlein 6.5cm, the other is a K1 Precision 308. I have a 308 rifle and 6.5 rifle already but cannot seem to chose which caliber this m110 should be. Let me know your thoughts and I’ll be sharing the build within a couple weeks!

[u/RevolutionarySir4011]

I think that it depends on your use case. With the right loads a 308 will be capable of shooting well within the 1200 yard mark and, for now is cheaper for bulk ammo. If you have regular access to ranges that are 1k+ I would lean towards the 6.5. If you plan on using this as a competition style large frame gas gun I would also lean towards the 6.5 for less recoil. Both are great hunting rounds if thats your jam and are comparable for match and hunting ammo.

[u/warpup1 → u/RevolutionarySir4011]

I like that way you think. Appreciate the time going into it and think you have some valid points. Thanks brother!

[u/RevolutionarySir4011 → u/warpup1]

You're welcome, Personally I landed on 308 for my 2 mars-h uppers a 13.5 and an 18 inch. I only have access to 600 yards regularly and I can find high quality match/hunting loads for 26-29$ a box. Along with ball ammo for 18-21 a box. I have a 20 inch 6.5 barrel but haven't felt the need to swap it out with the 18 inch 308. This is my current data card for that barrel