PA-10

That makes perfect sense so I will try a heavier round. My scope is a primary arms 1x6 Raptor First focal plane and I also have there second focal plane, both are very accurate and hold zero I’ve had no problems.

I am using a acss reticle which was sighted in at 100 yards and was hitting about a 1 Moa on a 18x30 target. Once it is sighted in at 100 yards I use the acss which has bullet drops out to 800 yards for a 5.56/308. I’ve been hitting at 600 about 70 % until our temperature getting really hot. I’m getting better Ammo to try soon.

I will be trying some heavier grain Ammo such as SK Match soon. As far as my experience with the .308 not a lot I started last fall when I got my new primary arms scope. Up until then i was shooting 5.56 and 7.62x39 along with multiple military surplus calibers, but not past 200 yards. When I was in the Marine Corps long ago we shot 500 meters prone iron sights on a pretty large draw target at the farthest. Like I said long ago, so eyesight is also a factor by the end of the day.

Thank you for the information on this, as far as groups opening up once the barrel is hot can’t say because I’m only trying to hit a 18x30 target at ranges of 200-600 yards. At 400-600 I can say I miss the target due to heat.

Thanks for this information what Ammo would be suitable for this 1:10 barrel? Thanks.

Sorry I didn’t answer correctly earlier, both of my barrels will be a medium profile. And you’d be correct in saying my free floated barrel is a bit more accurate, and I’d say I’m shooting about every 10-20 seconds typically but slower once I know it should cool down. I realize the PA-10 is not a match grade barrel and I don’t shoot for groups, I’m shooting at a 18x30 steel target and want to hit as central as I can. I’m shooting 200-600 yards. I didn’t buy my PA-10s to be competition shooters and with or without my optics I can hit out to 600,just better with it. I realized since I’ve started shooting at longer ranges heat has become a issue, at 100 yards doesn’t seem to make a difference. Sorry I didn’t understand the question earlier and thanks for helping.

I’m probably shooting too many and not allowing for proper cool down time but I’ve never really noticed any huge changes in accuracy until i began shooting longer distance.

I have some steel case wolf 145 grain that I’m just using up, but I also have been shooting ppu same grain fmj which seems better. I have already replaced my extractor to a jp Enhanced because of steel case ammo. I not had any malfunctions from either weapon, and I did some research here and took your advice on the buffer system works perfectly fine.

One barrel is a nitrated and the other is a stainless steel barrel both 1:10 twist both have same optics. I have had the free floated about a year I just got the other a few weeks ago it has a rifle stock. But I’ve noticed both seem to have this issue when they get heated up. I do know if I let them cool for a good while accuracy improves but heats up quickly since the ambient air temp has increased. Is Ammo an issue also?

Hello I’m new here and hope somebody may have some knowledge/experience with an issue I have. I have 2 PA-10s both are 308 and have 18inch barrels one is free floated and one isn’t. I’m in the south so it can be hot and humid here and I seem to have accuracy issues after I’ve gotten the barrel hot. I’m using a 1x6 Acss Primary Arms Scope and have hit out to 600 yards with no problems.Our range is covered so I’m in shade while shooting. Is the heat an issue?