300 RUM Sendero Range report

[kudzu]

Got to shoot teo new loads today. Both RL25 with AB bullets.
91.5 shot 1 5/8'' groups and the 92 shot 7/8'' groups. will try 92.5 soon.

On both groups the first shot was out and the next two were touching. This is the same as my 7mmRUM. First cold shot is 1/2 left and next 3 or 4 are hole for hole. O well, if I can get 300rum to 1/2'' I will be happy.

Does anyone else have this happen. It's no real problem for hunting but it takes about aweek to sight in. One shot every morning before work(priorities).

[JPSaxMan]

Those are great groups! Sadly, I do not have the means to hand-load so I do not have any info for you. Good luck though! Hope you can test these loads on a live target

[kudzu]

92.5 grs RL25 went the wroug way for me. groups opened up to 2 1/8.
Guess I will stay with the 92's for now at 7/8. These will hopfully shrink with declining temps.

[sniperVLS]

Going to try any other loads?

[kudzu]

sniperVLS, I will not do anything else until I can shoot in sub 50 % temps.
I'm under an inch now and if that improves any I will be ok. Would like to stay with the RL25 because I also shoot it in my 7mmRUM. If things don't get better with cooler temps, I will try H-1000 or retumbo.
If I can get .75 groups I THINK I can hit an elk. LOL
DM

[nomosendero]

Sub 50 degrees, that would be in the middle of Deer season here in AR.

Are the Accubonds 200gr.? I have heard more people doing well with Retumbo & 200Acc. than any other combination in the 300RUM.

[sniperVLS]

If I can get .75 groups I THINK I can hit an elk. LOL

ya think? lol

[kudzu]

 

Are the Accubonds 200gr.? I have heard more people doing well with Retumbo & 200Acc. than any other combination in the 300RUM.
 

Yes they are the 200 AB. Have read a bunch on other boards on the 300RUM and 200AB. Seems everyone has gotten good out of one of the three. h-1000, ret. and RL25. Started with RL25 because allready had for 7mmRUM.

[JPSaxMan]

If I can get .75 groups I THINK I can hit an elk. LOL

ya think? lol

LOL...that was good 

[kudzu]

Got to shoot er today at 300yrds. With the 92gr load got 2 1/4'' groups.
This was a 3 shot group and the temp was still 80+. Group was a perfect triangle. Maybe it will shrink with lower temps, however 2.25 at 300 is probally as good as I can shoot in field situations. Did shoot a 8'' steel plate at 300 yds from a sitting position and hit both times. This was freehand. (no bipod).

[kudzu]

Went back to range Monday. Sendero 300Rum gave me 2 groups of under 1 1/4'' at 300yrd. After last shooting I JB'd barrel about 20 more strokes. Took about 6 fouling shots for it to come in.Temps were down too, around 65%. All that being said, I'm thru for now with my load development for the 300RUM. 92gr RL25 & 200gr Accubonds. Hope to chrony soon, but from what I have read this load should be + - 3200fps. Not really that worried about a few fps, but am well pleased with accuracy.
Rifle is zeroed at 300 and is 2.5'' high at 100.

pleased, DM

[jro45]

With my 300 RUM BDL I shot a 3/4" three shot group at 200 yds using 96 gr of H1000 and 180 gr Remington bullets