Henry BBX 45c is back, long rambling post...
Posted: Thu Nov 07, 2024 5:41 pm
Get ready to Ramble....
So, I've been loading 6.5x55 swede... Subsonic, 140grn bthp's.
It's been an interesting time. The two loads I worked up use bullseye or titegroup powders.
With both powders, the Remmington 140grn bt accutip are about 100 to 120fps slower. They require almost a full grain of powder more for the same speed as the sierra 140grn bthp.


The remington accutip with the titegroup load I settled on settles in at 1020.8fps in this warm weather.
The Sierra 140grn settles in at 1063fps.
In both cases, the send shot goes super. There is just enough heat to send both of them over 1100fps. But I plan to use these to dispatch vermin and deer. The cold bore shot matters to me. Both rounds group exceptionally well when I wait between shots, meaning the first cold bore round impact is repeatable. Which is nice, considering I'm using an M1938 Swedish Mauser with a can on it.
So that brings me to todays project,
308 subs. Again, I chose Titegroup. I had less issues with it, along with more consistent velocities

Left to right, 168grn nosler bthp
175grn Sierra bthp,
190grn hornaday subx
200grn Speer fbsp
220grn sierra BTHP
Now, I plan to shoot these out of my ruger american; it's a 1:10 twist. I did have the cold bore shot here in the168 group. I suspect I can get the SD down a bit. I forgot to chamber that case, and the bullet went in hard. Some of the jacket was scraped. I think that is why the first shot had a much higher sd than the rest of the groups.
nosler 168grn

Sierra 175, these two shots were touching

Hornaday 190 sub x, the first round to fall subsonic. Also, it stacked both bullets in the same hole>..

Speer 200grn fbsp

Sierra 220grn bthp. I did all of this testing at 50 yards without a can because... yep, these show a bit of wobble at 50 yards. I'll save these bullets for my 300blk with a 1:7.5 twist.

Now, the reason why you didn't get photos of the groups is because my Henry bbx 45colt got back from warranty work. It looks fantastic.


I'm waiting on a scope, so, real accuracy tests will have to wait. I did put the pic rail, muzzle device and a holoson 510c on it to test it. The Chosun was last on a 300blk and was considerably off. It took me a number of rounds to get it sighted in at 50 yds.
This is a 5-round group sans the can @ 50 yards with American Eagle 250grn sp.

So, right out of the box, I have significant improvement. It's grouping, and I'll bet any variance is my fault, not the guns. I had a dickens of the time with the gun when I put the can on. I checked it with my clearance rod, but it was shaving bullets. I could not think of why. I took the can off and looked again. Sure enough, the clearance rod was silly close to one of the prongs on the flash hider. I un-torqued it, cleaned the threads, and removed the shims. I put it back on, test fit it with the clearance rod, and poof, it's all centered.
Lesson learned, shims suck, and you might get your muzzle device to look perfectly square, but as I found out when I put them back on, they tweak with the very fine tolerances. I tried three ways from sunday to get the shims to work. It wouldn't. I didn't run shims last time, so I left them off. I checked it with the rod once again, it cleared, checked it with rod and can, it was perfectly centered. I torqued the muzzle device down, and did a final check. We were good to go.
The result?
Matts, 285 grain Kieth SWC. The bottom two were sighting it in. The top 6 are one group.

250grn american eagle

So yeah, I need to clean, deprime, and prep all my 45 Colt brass. Barring that, I think this rifle is right on.
My muzzle device for my Smith and Wesson 1854 arrived today. This is a brake version, instead of the flash hider I use on the Henry. (different thread pitch, and this is what was instock.) Using what I learned about shims screwing with things, I skipped that step. Everything cleared the clearance rod tests. Here are its groups.
5 rounds of matts 285 swc with can.

I thought there was no way. So I tried for a second group, and pulled one.

This is 6 rounds of Matt's 285grn truncated cone gas-checked bullets. Again I pulled a pair.

I had a bit of factory ammo left, and being as how this is a Henry forum, I thought I'd give the Henry a go at 50 yds using the Holosun 510 and griffin bushwacker 46.
So, here, 3 rounds of American Eagle 250, 3 rounds of Speer Gold Dot 250, 3 rounds of Winchester Ranger Sxt. The gold dot was hitting 890fps, the Winchester ranger about 1020, and the American eagle about 1100.
So, 3 ammo types, pretty darn good. Especially since it would not group 250 grain bullets before.

So, I've been loading 6.5x55 swede... Subsonic, 140grn bthp's.
It's been an interesting time. The two loads I worked up use bullseye or titegroup powders.
With both powders, the Remmington 140grn bt accutip are about 100 to 120fps slower. They require almost a full grain of powder more for the same speed as the sierra 140grn bthp.


The remington accutip with the titegroup load I settled on settles in at 1020.8fps in this warm weather.
The Sierra 140grn settles in at 1063fps.
In both cases, the send shot goes super. There is just enough heat to send both of them over 1100fps. But I plan to use these to dispatch vermin and deer. The cold bore shot matters to me. Both rounds group exceptionally well when I wait between shots, meaning the first cold bore round impact is repeatable. Which is nice, considering I'm using an M1938 Swedish Mauser with a can on it.
So that brings me to todays project,
308 subs. Again, I chose Titegroup. I had less issues with it, along with more consistent velocities

Left to right, 168grn nosler bthp
175grn Sierra bthp,
190grn hornaday subx
200grn Speer fbsp
220grn sierra BTHP
Now, I plan to shoot these out of my ruger american; it's a 1:10 twist. I did have the cold bore shot here in the168 group. I suspect I can get the SD down a bit. I forgot to chamber that case, and the bullet went in hard. Some of the jacket was scraped. I think that is why the first shot had a much higher sd than the rest of the groups.
nosler 168grn

Sierra 175, these two shots were touching

Hornaday 190 sub x, the first round to fall subsonic. Also, it stacked both bullets in the same hole>..

Speer 200grn fbsp

Sierra 220grn bthp. I did all of this testing at 50 yards without a can because... yep, these show a bit of wobble at 50 yards. I'll save these bullets for my 300blk with a 1:7.5 twist.

Now, the reason why you didn't get photos of the groups is because my Henry bbx 45colt got back from warranty work. It looks fantastic.


I'm waiting on a scope, so, real accuracy tests will have to wait. I did put the pic rail, muzzle device and a holoson 510c on it to test it. The Chosun was last on a 300blk and was considerably off. It took me a number of rounds to get it sighted in at 50 yds.
This is a 5-round group sans the can @ 50 yards with American Eagle 250grn sp.

So, right out of the box, I have significant improvement. It's grouping, and I'll bet any variance is my fault, not the guns. I had a dickens of the time with the gun when I put the can on. I checked it with my clearance rod, but it was shaving bullets. I could not think of why. I took the can off and looked again. Sure enough, the clearance rod was silly close to one of the prongs on the flash hider. I un-torqued it, cleaned the threads, and removed the shims. I put it back on, test fit it with the clearance rod, and poof, it's all centered.
Lesson learned, shims suck, and you might get your muzzle device to look perfectly square, but as I found out when I put them back on, they tweak with the very fine tolerances. I tried three ways from sunday to get the shims to work. It wouldn't. I didn't run shims last time, so I left them off. I checked it with the rod once again, it cleared, checked it with rod and can, it was perfectly centered. I torqued the muzzle device down, and did a final check. We were good to go.
The result?
Matts, 285 grain Kieth SWC. The bottom two were sighting it in. The top 6 are one group.

250grn american eagle

So yeah, I need to clean, deprime, and prep all my 45 Colt brass. Barring that, I think this rifle is right on.
My muzzle device for my Smith and Wesson 1854 arrived today. This is a brake version, instead of the flash hider I use on the Henry. (different thread pitch, and this is what was instock.) Using what I learned about shims screwing with things, I skipped that step. Everything cleared the clearance rod tests. Here are its groups.
5 rounds of matts 285 swc with can.

I thought there was no way. So I tried for a second group, and pulled one.

This is 6 rounds of Matt's 285grn truncated cone gas-checked bullets. Again I pulled a pair.

I had a bit of factory ammo left, and being as how this is a Henry forum, I thought I'd give the Henry a go at 50 yds using the Holosun 510 and griffin bushwacker 46.
So, here, 3 rounds of American Eagle 250, 3 rounds of Speer Gold Dot 250, 3 rounds of Winchester Ranger Sxt. The gold dot was hitting 890fps, the Winchester ranger about 1020, and the American eagle about 1100.
So, 3 ammo types, pretty darn good. Especially since it would not group 250 grain bullets before.



























































