I did that. Put together with most affordable (cheap) components I could find; blemish lower + BCA side charging upper. The only upgrade is a $65 2-stage trigger made decent with a bit of work.
First the gas was shut off to turn the rifle into a straight-pull. A load was worked up. Loaded 10 rounds for a "qualifying group". First 5 rounds made solid 0.3" group at 100yd. For the heck of it, I opened up the gas to shoot semi auto. The remaining 5 rounds opened the group to 1.2". Something moved after the bullet passed the gas port hole, I think. It has a 24" barrel so the dwell time is relatively long. When come to think about it, it takes very minute muzzle movement to open the the group; +/- 0.003" will do it.
I'm going to keep the rifle in straight-pull config. Shooting slowly saves ammo, making each round counts more.
The load is with 75gr Speer varmint bullet (cheapest I could find) going at 3375fps. I like it. So far it has put my RPR in 6.5CM in shame, and it costs less than half. Scope is a $200 SWFA SS 10x44 in MOA. Kicks butt with zero nosense.
-TL
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First the gas was shut off to turn the rifle into a straight-pull. A load was worked up. Loaded 10 rounds for a "qualifying group". First 5 rounds made solid 0.3" group at 100yd. For the heck of it, I opened up the gas to shoot semi auto. The remaining 5 rounds opened the group to 1.2". Something moved after the bullet passed the gas port hole, I think. It has a 24" barrel so the dwell time is relatively long. When come to think about it, it takes very minute muzzle movement to open the the group; +/- 0.003" will do it.
I'm going to keep the rifle in straight-pull config. Shooting slowly saves ammo, making each round counts more.
The load is with 75gr Speer varmint bullet (cheapest I could find) going at 3375fps. I like it. So far it has put my RPR in 6.5CM in shame, and it costs less than half. Scope is a $200 SWFA SS 10x44 in MOA. Kicks butt with zero nosense.
-TL
Sent from my SM-P610 using Tapatalk