Anybody reloading 7mm BR?

[andyo5]

I am reloading 7mm BR for my Remington XP-100. I'm curious to see what others are loading for this caliber.
I am loading 139g and 140g jacketed bullets over 32g of W748.
Lucky for me that I bought 500 cases for this caliber a few years ago. They are almost completely unavailable now unless you want to form your own from .308 brass.
Thanks!

(PS: I have two extra dies for this caliber posted on the accessories for sale forum right now).

 

[ImprovedModel56Fan]

At present, I am loading 30.6 gr of H335 behind moly-coated Sierra 130 gr HPBT Matchkings. When I run out of those, I may start over unless I find some moly-coating supplies conveniently. I have lots of 7mm bullets, because in addition to my 7mm BR XP-100, I own a 7mm-08 H-S Precision 2000 VP (meaning heavy barrel "pistol"). I shoot 139 gr Hornadys in the H-S.

 

[andyo5]

0 grain bullets.

These are all 100 yard groups, over sandbags, with a Burris 7X IER.

Tell me more about this Burris 7X scope.
One problem I have had is finding a suitable scope with at least 24" of eye relief, at a power greater than 2X.
When I shoot from the Creedmore position I need 24" of eye relief. Off the bench, it doesn't matter.

 

[Ivan the Butcher]

My friends and I are rifle shooters. The 6BR and 22BR cartridges we have been shooting for about 10 years have been fantastic. What the 6 BR boy are using is unknown to me, but in my 22 BR I've used H-335 & H322. At the long range distanced I like to play with, My twist rate is to slow for the VLD and Hybrid bullets in the 106 range (6mm) and 75 grain range (22) So I am using 1:14 with 50 grains in the 3800 to 4000 FPS speed and getting 1" +/- at 500 yards. The engineers at Remington really did themselves proud with the BR series of cartridges!

There was a load on the internet for 22BR with a 30 grain Burger bullet @ 4400 FPS. They claimed accuracy to be 1/2 inch at 100yards. I loaded some and played with it for about 20 rounds, and 1/2 was all it would do, I wasn't interested in cooking a good barrel for that poor of accuracy, but boy did it vaporize a pint water bottle.

For brass, Lapua makes 6 BR brass of very good quality. It has the small primer pocket and the extra small flash hole, that made 7BR so effective!

Ivan

 

[andyo5]

I'm stating the obvious here, but the LER's (at the time) were about 4X maximum. I needed higher magnification than 4X for load testing.

The relief is too short for creedmore, I believe. The only time I shot the gun creedmore was in competition with open sights.

It is frustrating that the highest power I can use for Creedmore type shooting is 2X. I did recently try a Leupold FXII in 4X. I *assumed* that it would be similar to the M8 EER series scopes that they replaced. But as I found out to my dismay, it had insufficient eye relief. Live and learn.
Off the bench, I shot tiny little groups with the 4X scope. But my main purpose is competition, not bench shooting. Still, with the 2X Weaver that I have on it now, I can still keep 4 shots within an inch at 100 yards. Not bad, considering I can barely see the target black at that range.

I have considered looking for a used Leupold M8 EER in 4X, but I am not sure of the eye relief of those scopes. I do have a 2x M8 on another gun, and it is fine. But eye relief decreases as power increases.

BTW, thanks for posting all those photos with load data and results!

 

[andyo5]

At present, I am loading 30.6 gr of H335 behind moly-coated Sierra 130 gr HPBT Matchkings. When I run out of those, I may start over unless I find some moly-coating supplies conveniently. I have lots of 7mm bullets, because in addition to my 7mm BR XP-100, I own a 7mm-08 H-S Precision 2000 VP (meaning heavy barrel "pistol"). I shoot 139 gr Hornadys in the H-S.

I was shooting Remington 140g soft points, but they have been discontinued. I have started shooting the 139g Hornadays, like you.

 

[Bruce W]

XBR 8208 with sierra 130 BTHP and also worked well with speer 110 gr TNT.
My brass is necked up Lapua 6BR cci br 4 primers.