help with .270 reloading

[zeus50]

i'm kind of stuck on what to do next with my .270 reloading. I am loading for a remington sps .270. I'm shooting hornady SST boattails. I've tried both 130 and 140. for powder i've tried both IMR4350 and H4831sc.

i can not seem to get a group closer then 2 inches at 100yds.

I can shooting factory corelocks at around 1inch at 100yds.

I don't have the data with me. but i took the max load in the hornady book and backed down .5 grams x5. so if it was 62 i did, 62, 61.5, 61, 60.5, 60. for each powder (with their proper max charge).

not sure what to do next, help?!

[knight0334]

You did it bass-ackwards.. Start at the minimum and work your way up.

Many guns do not like near-max pressures and velocities. H&R/NEF guns are one of them. You get wider groups with them and near max loads.

Factory loads are generally nowhere near the max loads due to liability and unknown factors like what quality of gun the ammo is going to be shot through.

Since you can get 1" groups with factory loads, I wont advise you to inspect the scope, mounts, and muzzle/crown first. ..but you really should load from the bottom of the charts first, then work your way up until groups start opening up, then back it down to the last "best" group.

[twoguns]

You did it bass-ackwards.. Start at the minimum and work your way up.

Many guns do not like near-max pressures and velocities. H&R/NEF guns are one of them. You get wider groups with them and near max loads.

Factory loads are generally nowhere near the max loads due to liability and unknown factors like what quality of gun the ammo is going to be shot through.

Since you can get 1" groups with factory loads, I wont advise you to inspect the scope, mounts, and muzzle/crown first. ..but you really should load from the bottom of the charts first, then work your way up until groups start opening up, then back it down to the last "best" group.

Yes, Knight has it right. You start at a lower charger and work your way up. Be sure your COL is correct for the gun also. You want to be sure the bullet is sitting just off the lands of the barrel. I like those Hornady 140 grain projectiles!

[dkf]

Reloading books like the Lyman #49 have loads highlighted that are usually accurate loads in their data. I agree start low and work your way up. I would also try different bullets. You may find a certain bullet works best in your gun.

[Tim Ault]

Well if the rifle will shoot Rem factory loads into an inch your rifle has the ability to shoot good . maybe it just dont like that Bullet. Try a different one or even a different brand. I had a Rem 7 in 308 and it just would not shoot any hornady hunting bullet worth a hoot. Tried Speers and it went sub moa.You can also try different powder and primer combos of what you have if your dead set on using those SST's . But first I would do as the others stated start at the minimum load and work up to what you already tried.

[cephas]

How do the groups look? Any stringing horizontal? Have you measured your chamber to seat the bullets just off the lands? http://forum.pafoa.org/ammunition-re...ding-jump.html
Also have good results with Sierra bullets.