Home Forums Hunting & Shooting Long Range Hunting 7mm RM vs. 280AI - ABLR

I worked up accuracy loads in the 7 mag with 140g :

4064-3000 with cci 250 a must or hang fires

R#19 at 3250

IMR 4350

Big Game

New IMR Enduron powder equal to 4350

All shot tiny groups with the 140g Nosler ballistic tip and the 140g ttsx.

What my rifle likes maybe somewhat different than yours as bore dia is different, your lot# of powder is different, and your sizing dies are different.

I only worked with one powder at a time, cleaned the copper out every 20-30 shots, and there was copper in the barrel since velocity was 3200 and above with all powders other than IMR 4064.

Start with a rifle that has been bedded, barrel floated, trigger tweeked or you simply may not know what kinda results you get that will be repeatable. I did

have 140g Sierras blow up on shoulders of big deer, went to a 150 and 160g Sierra and fixed that problem post haste!

It has been stated before: Kiss the lands, find pressure on your load, then make adjustments to find best accuracy within 30 shots, darn quick.


ON another note,
A 280 bolt gun is dumb butt simple to load for with a 140g, bunch of powders. I shoot the 160g Nosler partition at 2930 fps with a load right out of the Nosler #4 manual, Rem 700 with a 24" barrel, IMR 7828, FEd 210(key).

Bugger, there are people on here who definitely know what they're talking about. And if Keith offers his advice you'd do well to listen.

If you have the above that shoot <0.5” consistently, why not just use your 280 Remington or 7 mm if you want to throw .284s?

Why no mention of the 150 or 162 eldx?

Paying attention as I have generic "Campfire loads that work" made up for a couple three rifles.

Generic home run 7 rem load

180 scenar
68 gr IMR 7977 in ADG (a tad more in rem/hornady brass)
CCI 250
2.760” BTO

Haven’t seen this formula fail to impress yet in a Remington 700.As always work up to verify ..

I like the ABLR in both cartridges but it can be a tad finicky about seating depth and loading. But it would be about my last choice for coyotes with multiple other bullets working better depending on range and usually easier to get to shoot and cheaper too.

VV 165, R22, R26 & MRP have worked well in my 280 AI. H870, R22, R26, H4931, MRP have worked in my 7RM's.

....

That was my thinking as well. I’ve got some loads worked up with 150 gr Eld-x and RL22, that I need to just find a time to get to the range and test out. If they shoot anything close like the 123 and 130 gr. ELD’s ( match and x) shoot out of my .260 Rem, I’ll be thrilled.

I use the 150 eldx in my 7mm-08 Tikkas, mv 2790.

I use the 162 eldx in my 7mm Rem Mag at 2970.

Very accurate, kills right now.




P

I would load a similar cheaper bullet to find a good charge weight then switch to the ABLR and take a seating die to the range. Basically follow the advice on the Berger reloading tips page on seating. Use big increments to start then fine tune. The longer and sleeker the bullet is the more tuning it needs has been my experience. Especially ones like the VLDs, Sirrocco II, and ABLR. Sometimes the velocity nodes and seating depth will transfer between bullets.

My 280AI likes R26 I am shooting the 140 AB at around 3200 fps and it is a deer killing machine. I have the ABLR but don't feel much need to switch.

Allways had good luck with WW brass 65-66 grs, imr 4831, fed 215's, and 139 gr Hornady btsp 3175 -3200 fps in the 7mm mag with a 24" barrel for out there deer loads. MB

Hahahahaha

those goofy bastids think "Big Stuff" is 7mm & 30 cal, then they all talk about 7mm-08 and 308 Win

LMMFAO

Haven’t fired any 7mm in decades, but I’ll bet those ABLs aren’t going to be as “fur friendly” as Mr. Bugger thinks.

Pics please, when you tag one.

Example of one...the 7mm 168 ABLR at 3000fps (muzzle) is NOT fur friendly on a bobcat at 200 yds. 😮 Think softball.

Think blown in half!

My experience with ABLRs like many other people is they like to jump. Don't have my notes in front of my but I got them shooting well with .080 of jump and .130 of jump. Don't try kissing the lands with these bullets.

In my 280 AI, warmish load of IMR 7828, FED , 175g LRAB shoots tiny clover leafs with no paper between the bullets! Bullets kissing the lands...probably the exception to the rule.

I just did a load work up with my 7 Mashburn, ended up .100” off the lands and my groups look like Keith described.

Nice - is this a custom rifle?