- Joined
- Feb 14, 2023
- Messages
- 163
Well after building several shorter barrel 6.5 cal magnums for myself I decided that a 260AI would probably do the same thing since its not overbore. The prc's and saum's lose quite a bit in the shorter barrels. I decided to put a 20" barrel on it since Im running a can. Unknown Reaper only added 5 3/4" past the crown. The hydro formed brass hammered while breaking the barrel in. Consistently half moa or better at 625 yds. Since I had over 10k of the 140 elite hunters on the shelf I decided I might as use em up lol. I have a pile of N555 so I tested it first after the barrel was broke in and brass was shot once. 46.2-47.0 was under 2" tall on the ladder test at 625 yds. 140 Elite Hunter at 2790 fps. There was another node up at 2865 fps but it wasn't as wide and had some powder crunch while using a drop tube. No pressure signs at 2865 fps. Decided to just load up in the middle of the mild and wide node. Shot 4 groups in a row with 46.6 gr at 625 yds and all had under 2" of vertical. Since then Ive shot a bunch more groups at 625 yds and all have been under .5 moa vertical. Same w 900 yds. Ive shot some 1-2" groups at 900 for 3 shots and several 3" groups. And a 5 shot at 900 that was 2.75" tall and 3 1/2" wide. This thing is stupid accurate and consistent as well as hardly any recoil. I don't see the Alpha small primer brass wearing out in less than 25-30 firings due to this mild load. Case head isn't moving after several firings. Ill be using this rifle for everything that doesn't require my 300 norma improved. Cow elk out to 600 and deer/antelope to 1000.
As a side note I did try H4350 and it had some nodes at 2830 and 2850 but they werent near as accurate as this n555 load. And the 4350 loads showed a little more pressure on the case head.
Rifle has the following:https://www.facebook.com/DefianceMa...Z93QWUkAktmCfIguV7sMVA50bs6PdtAw&__tn__=-]K-R
Defiance ANTIX Short action cut for unknown 3.150 mags and ignition gone through
Manners Pro Hunter Adjustable
Benchmark 6.5 cal 7.5 tw 20" sendero light
Unknown Bottom metal and 3.150 mags
Triggertech Rough Diamond set at 1.5 lbs
Unknown Reaper with the SRS mini CB
Nightforce NX8 4-32 MIL C bedded into some NF 4 screw rings
Rifle with optics and suppressor weighs 9 lbs 4 oz.
As soon as the NX6 5-30 MIL comes in Ill throw it on and try it out.
Ill be building some of these to have in stock shortly.
Dies are readily available from Redding or Short Action Customs
Alpha Brass and 140 Bergers are on hand.
Rifle with optics and suppressor weighs 9 lbs 4 oz.
As soon as the NX6 5-30 MIL comes in Ill throw it on and try it out.
Ill be building some of these to have in stock shortly.
Dies are readily available from Redding or Short Action Customs
Alpha Brass and 140 Bergers are on hand.
www.piercisionrifles.com
As a side note I did try H4350 and it had some nodes at 2830 and 2850 but they werent near as accurate as this n555 load. And the 4350 loads showed a little more pressure on the case head.
Rifle has the following:https://www.facebook.com/DefianceMa...Z93QWUkAktmCfIguV7sMVA50bs6PdtAw&__tn__=-]K-R
Defiance ANTIX Short action cut for unknown 3.150 mags and ignition gone through
Manners Pro Hunter Adjustable
Benchmark 6.5 cal 7.5 tw 20" sendero light
Unknown Bottom metal and 3.150 mags
Triggertech Rough Diamond set at 1.5 lbs
Unknown Reaper with the SRS mini CB
Nightforce NX8 4-32 MIL C bedded into some NF 4 screw rings
Rifle with optics and suppressor weighs 9 lbs 4 oz.
As soon as the NX6 5-30 MIL comes in Ill throw it on and try it out.
Ill be building some of these to have in stock shortly.
Dies are readily available from Redding or Short Action Customs
Alpha Brass and 140 Bergers are on hand.
Rifle with optics and suppressor weighs 9 lbs 4 oz.
As soon as the NX6 5-30 MIL comes in Ill throw it on and try it out.
Ill be building some of these to have in stock shortly.
Dies are readily available from Redding or Short Action Customs
Alpha Brass and 140 Bergers are on hand.
www.piercisionrifles.com
