Imr 4198 for 6.5 creedmoor?

[TikkaJerry]

Hey guys, with powder being as hard to find as it is, I came across some imr 4198 the other day. Looked into it and people load 22-250 and other smaller cartridges with it. I'm about to start reloading for my 6.5 cm and was wondering if anyone has any experience loading this particular powder into this cartridge. Thanks in advance

 

[mike mccormick]

Doesn't sound like a good choice to me. 4198 is a bit fast for that cartridge.

 

[shoot4fun]

IMO, IMR4198 is way too fast for the 6.5 Creedmoor even with the lightest weight bullets.

 

[TikkaJerry]

Dang. Well glad I asked. It was worth a shot. What about for 223?

 

[shoot4fun]

Why not use the following reference for loading with Hodgdon, IMR or Winchester powders:

Hodgdon Reloading Data Center – The Brand Thats True

www.hodgdonreloading.com

 

[LA50SHOOTER]

Dang. Well glad I asked. It was worth a shot. What about for 223?

I’ve used it in a 223 REM. With LIGHT bullets. 52 grain and less.

As was stated, too fast a burn rate for a 6.5 creedmore.

 

[457ciSBC]

Hey guys, with powder being as hard to find as it is, I came across some imr 4198 the other day. Looked into it and people load 22-250 and other smaller cartridges with it. I'm about to start reloading for my 6.5 cm and was wondering if anyone has any experience loading this particular powder into this cartridge. Thanks in advance

As does 250 Savage, 243 Win, 6mm Remington and 308 Win all have IMR4198 loads.Thus, there’s the possibility of IMR4198 in the 65CM under the RIGHT conditions.However, since no terribly light 50-60 grain 6.5mm jacketed bullets exist, I would NOT do it.....run away, run away.

 

[Pawnee Bill]

IMO, IMR4198 is way too fast for the 6.5 Creedmoor even with the lightest weight bullets.

Amen

 

[TikkaJerry]

Fair enough. What about imr 4064

 

[TikkaJerry]

Basically I'm trying to find a powder that I can use in these times when some select powders are virtually non existent

 

[KY_Windage]

You should, as a novice, have a rule that you do not load anything that is not in a good reloading book or database. That includes not only the powder type and weight but the bullet weight AND type.

The Hodgdon site lists several powder weights and bullet weights/types for IMR 4064 in 6.5 CM. It is free. Use it!

 

[venatic]

I would look at the Hodgdon burn rate chart..... powders from no.90 to around no. 130 could be acceptable depending on bullet weight and your performance expectations.

 

[NZ_Fclass]

Having made the rookie mistake of swapping containers...N120 does not work in a 243 with very light bullets....Thankfully a P14 action. The stock is on the wall as a reminder.

 

[243winxb]

What about for 223?

IMR4198 works well with 50 to 69 gr bullets. Does not produce top velocity. May not produce the correct port pressure for some auto-loaders , using light bullets. Expect around +/- 1/10 gr variation out of most measures.
Used up 10 lbs. Got a new 8 pounder late last year.

 

[boltfluter]

Old post warning.
CAUTION: The following post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, Accurateshooter, nor the staff of Accurateshooter assume any liability for any damage or injury resulting from use of this information.

Could someone run Quickload using IMR 4198 powder in the 6.5 Creedmore with 140 gr Barnes Match burner.
OAL 2.820" Bullet length 1.348" Hormady brass.

The 1999 Reloading guide from IMR list these cartridges using the maximum powder charges of IMR 4198 powder. So it should be usable in the 6.5cm.

Yes, not a good powder choice for top velocity in 6.5 CM , but i have 8 pounds of it.

Thank You
View attachment 1257190

Why take the chance! No such thing as a good explosion! With fill levels below 50 % there is a good chance of having detonation. Personally I would not go there.

Paul

 

[Evan]

I've used IMR-4198 in 30-06 for reduced loads. It's dangerous to operate outside known values and not something I would encourage a new reloader to try with the 6.5 Creedmoor over the internet. It will work great in 223 and you should be able to find plenty of published data for that application in reloading manuals.

IMR-4064, on the other hand, is a tremendously accurate and undervalued powder for just about any rifle cartridge. I would strongly encourage working with that one if you have it. All my smallest groups have been with IMR-4064.

 

[boltfluter]

IMR 4198 is NOT a double base smokeless powder containing nitroglycerin. I see no issue. I have loaded cast bullets in rifles using IMR 4895 with greatly reduced loads No problens. Note my post above, 1999 data.

Always good advice to follow published , tested reloading data.View attachment 1257615

It is a well known fact that 4895 is great for reduced loads. Not so much with 4198! Personally I would not take the chance just because I have a certain powder.

Paul

 

[Laurie]

It is a well known fact that 4895 is great for reduced loads. Not so much with 4198! Personally I would not take the chance just because I have a certain powder.

Paul

Go back far enough and IMR-4198 was widely recommended in reduced velocity loads with jacketed bullets. My first reloading manual around 40 years ago was Speer #10 which showed a reduced load combination as the final table entry for most cartridge - bullet combinations and 4198 was the norm. They came with all sorts of caveats, but the primary one was warning against under-loading (the concern being a bullet stuck in the bore, also jacketed bullet velocities become inconsistent at too low pressures / MVs because of their high friction in the bore compared to lead-alloy types).

The next edition, No.11 of 1987 still had reduced loads for many cartridges, but most had now changed to DuPont SR-4759, sensible as this propellant had originally been developed for this very purpose for the US Army for its bullet testing in 30-06. IIRC DuPont had withdrawn it, but then briefly reintroduced it for the handloading market in the 1980s.

A few 4198 loads remained in Speer #11. For instance, .30-06 with 180gn bullets. Start load: 26.0gn / 1,723 fps; Max charge: 30.0gn 2,000 fps. After #11, Speer dropped the reduced loads for whatever reason.

H4895 is an excellent reduced load powder, but for combinations that are closer to standard pressures and velocities. Take performance down far enough and you need a faster burning powder. Ideally, this should be a specialist grade such as SR-4759, today's equivalents being Hodgdon Trail Boss, Accurate-5744 and Shooters World 'Buffalo Rifle'.

This is all by the by. I'd not consider 4198 as an at all suitable grade for the 6.5 Creedmoor in any normal use.

With 4350 shortages, there are many suitable alternatives. (Whether they're actually obtainable in the USA I can't say, being on the others side of the Atlantic.)

For 4350 equivalents, consider Alliant Re16 and 17; IMR-4451 Enduron; Ramshot Big Game and Hunter; Lovex SO65 and SO70 (Shooters World 'Long Rifle' and 4350 respectively); Norma URP and 204, Vihtavuori N550, N160, and the new N555 developed for the Creedmoors; Hodgdon H414.

For the next faster burners which are still usable in many 6.5 Creedmoor loads: Alliant Re15 (and TS 15.5 when it appears); Norma 203-B, Viht N150, Lovex SO62 (SW 'Precision'); Accurate-2520.

 

[Larry sigmon]

Either 4350 is what I ues

 

[Hohn]

Go back far enough and IMR-4198 was widely recommended in reduced velocity loads with jacketed bullets. My first reloading manual around 40 years ago was Speer #10 which showed a reduced load combination as the final table entry for most cartridge - bullet combinations and 4198 was the norm. They came with all sorts of caveats, but the primary one was warning against under-loading (the concern being a bullet stuck in the bore, also jacketed bullet velocities become inconsistent at too low pressures / MVs because of their high friction in the bore compared to lead-alloy types).

The next edition, No.11 of 1987 still had reduced loads for many cartridges, but most had now changed to DuPont SR-4759, sensible as this propellant had originally been developed for this very purpose for the US Army for its bullet testing in 30-06. IIRC DuPont had withdrawn it, but then briefly reintroduced it for the handloading market in the 1980s.

A few 4198 loads remained in Speer #11. For instance, .30-06 with 180gn bullets. Start load: 26.0gn / 1,723 fps; Max charge: 30.0gn 2,000 fps. After #11, Speer dropped the reduced loads for whatever reason.

H4895 is an excellent reduced load powder, but for combinations that are closer to standard pressures and velocities. Take performance down far enough and you need a faster burning powder. Ideally, this should be a specialist grade such as SR-4759, today's equivalents being Hodgdon Trail Boss, Accurate-5744 and Shooters World 'Buffalo Rifle'.

This is all by the by. I'd not consider 4198 as an at all suitable grade for the 6.5 Creedmoor in any normal use.

With 4350 shortages, there are many suitable alternatives. (Whether they're actually obtainable in the USA I can't say, being on the others side of the Atlantic.)

For 4350 equivalents, consider Alliant Re16 and 17; IMR-4451 Enduron; Ramshot Big Game and Hunter; Lovex SO65 and SO70 (Shooters World 'Long Rifle' and 4350 respectively); Norma URP and 204, Vihtavuori N550, N160, and the new N555 developed for the Creedmoors; Hodgdon H414.

For the next faster burners which are still usable in many 6.5 Creedmoor loads: Alliant Re15 (and TS 15.5 when it appears); Norma 203-B, Viht N150, Lovex SO62 (SW 'Precision'); Accurate-2520.

The most accurate short range load I’ve found yet in 6.5 was rl15 at 36.5gr. 140 ELD at about 0.060” jump.