Went to a gunshow Saturday in hopes of finding some decent priced .22 match ammo. That was wishfull thinking at best. I did come across something that peeked my interest and that was a bolt action 300 Blackout. I had planned on building one this coming year but decided to go ahead and purchase the Remington 700 SPS Tactical ACC 300 BO with 16.5" barrel.
After church Sunday I went ahead and broke the rifle apart, threaded the bolt handle for a bigger knob. Ditched the Hogue stock and bottom metal. I then placed in in a AICS 2.0, scrubbed the bore with JB's bore paste and mounted a US Optics SN-3 atop her with some 2 piece bases i had onhand. Will be getting a 20 or 30 moa base for it soon.
I tried Hornady 225gr BTHP and 208gr Amax's. The goal was to get a sub-sonic load that groups in the 1 MOA range at 100yds. AA1680 powder and Rem 7 1/2 match primers along with formed Federal brass. This took some experimenting to do as I was getting 100+fps spreads. I was able to seat the bullets way out there with the roomy AI mag but in the end wound up seating them deep as accuracy and ES's gt better. Finally wound up with a load using 10.9 grs of 1680 behind a 208gr Amax seated at 2.200" with a medium crimp. It averages 1020fps with spreads of 30fps and a SD of 12fps.
This morning, Labor Day I awoke and was able to do some real life testing with it on a pig. 35 yard shot just behind the ear turned the lights off on the boar. It was actually quite cool.
I didnt expect great accuracy but wanted quiet and quiet it is. I have a Form 1 out for a dedicated suppessor for it. The 223 AI mag runs flawlessly with the BO. The rifle is a bit on the heavy side and will look at a lighter stock. Will continue some load development but have faith that the Amax load will do fine.
Looking forward shooting it out a bit further. All in all, so far I am happy with it.
After church Sunday I went ahead and broke the rifle apart, threaded the bolt handle for a bigger knob. Ditched the Hogue stock and bottom metal. I then placed in in a AICS 2.0, scrubbed the bore with JB's bore paste and mounted a US Optics SN-3 atop her with some 2 piece bases i had onhand. Will be getting a 20 or 30 moa base for it soon.
I tried Hornady 225gr BTHP and 208gr Amax's. The goal was to get a sub-sonic load that groups in the 1 MOA range at 100yds. AA1680 powder and Rem 7 1/2 match primers along with formed Federal brass. This took some experimenting to do as I was getting 100+fps spreads. I was able to seat the bullets way out there with the roomy AI mag but in the end wound up seating them deep as accuracy and ES's gt better. Finally wound up with a load using 10.9 grs of 1680 behind a 208gr Amax seated at 2.200" with a medium crimp. It averages 1020fps with spreads of 30fps and a SD of 12fps.
This morning, Labor Day I awoke and was able to do some real life testing with it on a pig. 35 yard shot just behind the ear turned the lights off on the boar. It was actually quite cool.
I didnt expect great accuracy but wanted quiet and quiet it is. I have a Form 1 out for a dedicated suppessor for it. The 223 AI mag runs flawlessly with the BO. The rifle is a bit on the heavy side and will look at a lighter stock. Will continue some load development but have faith that the Amax load will do fine.
Looking forward shooting it out a bit further. All in all, so far I am happy with it.
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